Yeah, sadly, there has been a bit of a push for PC98 games lately, but it seems to mostly come from the people interested in all of the adult games. Though there have been a couple of actually really good developments, like the translation of the EVO RPG (the game that came before the SNES EVO), and the Brandish 2 Renewal translation. I recommend checking both of those out.
As far as MSX goes, I always expect to see more of it just because it was pretty popular in eastern Europe and South America.