Ah that's good to hear.
Though I'd like to see how they will tackle the lengthy Federation and Zeon scenarios. If they were going to add anything past Hathaway's Flash it will be a bit hard to do since Mobile Suits from the 100's-up started to get smaller and faster making pretty much all MS before that obsolete.
Then there is the task of creating new areas, unless they have a creative way of pulling it off, a faction like Mars Zeon or the Jupiter Empire would require a whole new strategic map area to cover Mars, Jupiter, and the Jovian colonies.
That and Revel would be pretty old and possibly dead by the late 0090's. Gihren would still be alive since I did the math and he would be about 79 by the time F91 took place, though he would probably be in Degwin's position as a figure head while his heirs or whoever is #2 on the Zeonic totem pole did their own thing. I wonder if they would address characters age in the next game? If anything give Gihren a picture change and have a change of power for the Feddies so that they don't look too out of place. This of course assuming that they add past Hathaway's Flash, which considering with the other Gundam import game I've played (Gundam Battle Series) they probably will since both seem to follow the same technique of adding a little bit more on the timeline each release.