baikal just annouced a 20kh/s 60w Baikal Giant N which does cryptonight... gg
It will be useless in 6 months as Monero will change PoW every 6 months.
As far as I know will be useless for Monero at the end of this month with V7. Baikal may be able to release a firmware for V7, but I'm sure Monero will make sure it's not possible for the next one
It'll be useless with V7 in ~15 days, and if baikal could circumvent that with a firmware update (hint: they can't) you can be sure Monero devs wouldn't wait 6 months before updating the algo again.
Why do you think they can't? I bet these are FPGAs as the other Baikal miners. Monero could screw them by increasing the memory requirements, but that would also affect CPUs that have limited cache size. Knowing Baikal unresponsiveness I wouldn't bet on them releasing anything on any predictable schedule though.