People are trying to beat the Indom 2.0 with their own hybrids but indom 2.0 can get a few enhancement.
To start of, replace the northern short tailed shrew with dolinasorex. An extinct shrew that have Iron where it mattered most, the tips. Not to mention they had better iron management so we get the Iron allocation of the Vampire Bat as well, and better enough, they're still venomous. But the next animal I will add is the pallid bat due to the fact that they're resistant to many insect's venom allowing her to handle more types of enemy. And as bats, they can provide echolocation and an improve the immune system even further.
Conclusion: Indom 2.0 CAN definitely get some improvements, but the original indom 2.0 is already dangrous enough that's why Goji Center never upgraded her.