I think there won't be new CN variant algorithms anymore, probably a lot of old/new projects will follow the RandomX path. SRBMiner-CN is working with the existing algorithms, so any project that uses one of those could be mined with SRBMiner-CN.
If there will be any new CN variants though, i will consider adding them to the new MULTI miner. This one is an improved version of the old miner, i fixed a lot of bugs, added cpu mining support etc.
Talleo uses CryptoNight Ultra Variant 2, which is similar to CryptoNight Turtle (CryptoNight Ultra Lite Variant 2 or cn_pico/turtle), but is still incompatible. As latest xmr-stak has issues with rejected shares with both CPU and GPU mining, and xmrig doesn't support the algorithm, people are complaining they can't use SRBMiner-CN with their AMD GPUs.