I have a good feeling that there will be a stable python port of the stratum servers available eventually which I'll put putting in BTC to help push the dev along to get it done. It's a tricky project so I hope it makes it to finish.
I myself ponder why altcoin devs on the SHA port don't add a way to have merge mine support with BTC. That way we can mine BTC, and send all lesser hashes to altcoins. Would be a win-win for long-term miner support and for the miners as well.
We can only hope for someone to unify the coding so it happens and its easy to add to different coins.
There are many SHA256d that are merged mining capability, I don't know if the code messes up BTC mining but it causes more orphaned BTC blocks