What exactly is the issue with the wild animal cap? If extinction is the issue, you could boost animal numbers with the population tokens.
The problem I have encountered is that there are a lot of flying bugs (bees, wasps, moths, butterflies, dragonflies, flys, etc.) and a lot of bugs cluster together, so you may get six honey bees show up at the beginning of the game and are not able to interact with them or see any other bugs for a few years. Once they leave, another five or six of another flying bugs can show up, preventing any other bugs from spawning. The other issue is having such a rare queen caste. Without the ability to breed, you are restricted to migrant waves, so you find yourself sitting around waiting for more ants to show up unable to really fight anything.
I would like the mod to be a fast paced game with hordes of insects rapidly multiplying and dying. They are stress hardened and physically built for combat. Most bugs are predatory, territorial and constantly push their civ boundaries. I would like the gameplay to be brutal and fast paced, with a constant churn of ants (rather than the traditional RP nature of DF).
I could make flying insects very rare and only show up as single units, but even so there are so many of them, when they do show up, they take up a wild animal slot. Or I could give all flying insects predator or opposed to life tags to get them out of the air, but this isn't very realistic with things like bumblebees.
I can also make the queen caste less rare, but then each site would have multiple queens. I could try to get around this by having the ant queen be defined as a position, but non queen positions will still give birth if they are of the queen caste.
I can also try to make entities constantly go to war and lower the attack triggers, but this is not consistent or reliable.
Overall I was just hoping for a more fast paced/brutal game play that had rapid territorial expansion, quick and large birth litters and a constant threat of other bugs, but instead the mod is slow and uneventful for years. I will need to think of some ways to make the mod more eventful/brutal and faced paced (but I was hoping to avoid dfhack lol)