That's right. The only "Front Mission" that was never planned from the start like the other 10 were, and wasn't even made by Toshiro Tsuchida.
Front Mission "ended" when FM5 was out. Notice how excluding FME, the only FM releases have been ports or remakes? Because there's no reason to keep it going.
That's just FM video games though. Its non-video game line is still going strong, and will keep going for a few more years. Otherwise, don't expect any FM video games...only more FM stories.
Nah, he's more likely to revive his old studio, G-Craft, which was absorbed by Square when they realized Front Mission was worth the money. Not sure what kind of games he might make, but he sure won't be sticking to TBS/SRPG games.
Fact is, Tsuchida (and the rest of his team) are action/shooter specialists; Front Mission and Arc the Lad are their ONLY offerings outside of their action/shooter portfolio that includes Cybernator and Einhander. So if anything, he'll...
FM actually wasn't supposed to continue beyond FM5. It was planned to have only 10 games (1/2/3/4/5/2089/2089-II/Altern ative/Gun Hazard/Online), ending at FM5...FME was never supposed to exist. SE just wanted to cash in on the FM name without consulting Tsuchida or any of the actual FM devs themselves. Read frontmission.info, all the juicy details are there.
Check out the English fan translation at frontmission.info if you're interested.