A pre-release DLC is a bad idea.
I think not always : let's say this is game similiar to Heroes of might and magic - and let say you have humans, elves, dwarves etc and default look for humans are "wolf kingdom" so it can added by DLC here " snake kingdom" as just retexture of human kingdom - nothing is change just look. So in this same time devs can add new factions , units make great rebalance etc. Why? because if they would do this same thing people will bombarding about bad balance, small number of units etc but if they will keep in early access to avoid review bombing but release dlc too
I don't think the owners particularly want to do child zombies. There's a good chance they wouldn't be in the game even if every country on earth said, "Killing infected children in a video game is perfectly fine by us". You would have to get an answer from Mr Mole directly on whether they would want to use such a loophole to put child zombies in the game once they turn to DLCs.
Well i think there is more example how can loophole can be used : adding more advance gore in L4D2 and cod WAW style , drugs like morhpine ( idk if something change about law here - i read article about problem with skyrim in few countries because there is drug skooma) etc. So this can be usefull solution if this work .
Btw about child zombies - i think it could be part of "enemy pack" - let say 30 new zombies types + new bandit faction + flamethrower.
1. gameplay possible : well zombies like charger,hunter, smoker from l4d2 cannot be implemented because they are coop "types" so : zombie in this way need QTE or some type of "defence" item- taser etc but it can create bugs + if this zombie attack you rest zombie can attack you so this would be annoing.
Big zombie cannot be added - that's why we don't get behemot.
zombie similiar to charger from DL2 could create bugs if this zombie could attack near wall by throwing players inside a wall
So what could be done? : water zombie, range zombie, infection/radiation cloud zombie, armored zombies, "witch" zombie, armed zombies, weak zombie, regenerator zombie, passive zombie, teen zombie , animals zombies
2. gameplay sense:
Okay water zombie can have sens always so short- it can explode swim etc a lot of thing can be done here,
Range zombie - Now we have Cop and mutated zombie - so cop is explosive / long range and mutated is short range /infection - so i suggest add weaker long and short range zombie shooting with acid but making bigger pool of acid. zombie with guns can be added but.. idk if this type of zombie will be not so similar to bandits- it's works in stalker but stalker zombies have rly bad accuracy but there is big number of them
Infection cloud/radiation cloud zombie - zombie emiting radiation similiar to dl toxic zombie or hazmat zombie from dead trigger. So this can be done
Armor zombie - well can be done and can be interesting
Witch - Valve love crossovers- we have crossover with NZA, DL1,RE6 so i think they would agree to transfer witch from l4d2 - just change a little bit design. But if not i think it can be done something similar
Armed zombies- well this depends how bandits works so idk if zombie with melee weapons can work or not
Weak zombies - not for dlc but for basic game this one could works good - grandpa or decyed zombie
Passive zombie - not for dlc again
Regenenerator - well zombie with plants or fungus on it would be interesting enemy
teen zombie- small but faster but less hp- well faster that normal zombie and harder to hit but pretty weak so this can be interesting and no more room in hell is good example about that
animals zombie - honestly... i think only crocodyle, lion or tiger and mutated big snake could be added too - Well people hate spiders so a lot of people would complain about big spider, elephant is too big like behemot
Aestetic : okay we have more "WD" types of zombies with mutants but only "humanoid like" and "not crazy" ones - So mutants like nemesis , Mr. X ,uroboros, resident evil werewolfs will not suit here .
So : water zombies will suit for sure, range zombie probably another acid one would but with guns not. Cloud will suit good, armored zombie - zombie riot armor, saper suit maybe something in cod in payday collosus armor would suits perfect maybe even with fungus as armor. A lot of games have similiar zombies so just put them in water
Witch would suit perfect- i think it would be nice trolling for new players- they would think there is survivor but it is a zombie. Well this type of zombie would need to be closed in room but a lot of POI have closed rooms
Armed zombie- well this depends how bandits works
Weak - yes - very weak, old or rotten zombie would looks rly good - well old corpse get out from his coffin as zombie - perfect for body pits, cementary, hospitals, desert , wastelands etc
Passive zombie - even weaker zombie - let say dried out zombie on desert could be interesting - rare zombie but unable to attack you - so it can be on wastelands and desert but rare and maybe in few pois like labs, hospitals etc
Regenerator- this could be mutant like spider zombie , fungus one or plant one - so this will suits for sure but where it can be find depends on design
Teen zombies - well no more room, is the best example how it can work and it can be pretty universal- it can be outside and inside a lot of POI.
Animals zombie - well crocodyle zombie need lakes, rivers swamps so this can be bigger problem that drowned zombies, lion or tiger zombie could work as boss in few pois, snakes can be on wastelands and dessert right.
So : possible variants of zombies are very limited in 7dtd because they gameplay and "virus" type zombies.
@Roland i hope i didn't make any bigger mistakes about possible zombie types and i just hope Mr. Mole will respond what he is thinking about that. I know he is busy men so he probably will not have time to read this but i hope at least this arguments will be interesting and logical for you