Phil Spencer mentioned they are "deep in" development of the next console, so I don't see this has a "Games as a Service" thing, or a bi-yearly miss, but more of FM8 being a launch title for the next Xbox.
The thing is, is a "next gen" of consoles, in the traditional sense of the term, even coming? With the pace of technological process slowing down quite significantly in the last few years (I mean, Ubisoft and EA are still using game engines that were launched in the early days of the PS3), and with the switch to digital content removing one of the main reasons console manufacturers made a distinction between console gens in the last few years (i.e. the need to maximize the efficiency by which disk space is used by only including the assets used by the specific generational version of a game), I doubt we will see an Xbox Two that will completely supersede the One: the next consoles (Spencer used the term consoles, plural) will likely only serve to raise the ceiling of what developers can do on Xbox.
This means a softer launch that doesn't require all first-party exclusives to launch a new title to sell units - and with Halo Infinite coming out around the time we expect the Scarlet generation of Xbox(-es) to hit the market, plus a possible killer app from PG in development, I don't think MS would "skip a year" with Forza Motorsport (which at the moment is the part of the Forza franchise selling less) to have FM8 as a day-one title.
Besides, it would make an awful lot of sense for T10 and PG to slow the pace of their releases regardless. With every passing year and with every addition to the gameplay, it becomes harder to add more stuff and release new titles able to top the previous ones; and shipping a new game is also an expensive endeavour. I simply don't see how they can keep releasing a game every two years in the future, without suffering some significant sequel fatigue - which is the best way to burn a succesful franchise, as
Need For Speed has clearly demonstrated.
I personally would like to see Audi (The "last new to Forza" Audi we've received dates all the way back to FM6) and Mitsubishi (have been poorly represented in every Forza game basically)
Heh. I don't see that changing anytime soon, with Mitsubishi being in full retreat from the US market and the car industry in general.
I would love to see Audi getting the spotlight, too. The current roster of Audi cars is in dire need of some upgrading and updating (although the last NTF car was the TT RS VLN we got as part of one of the FM7 car packs). On the other hand, Alfa Romeo and Ferrari already got plenty of attention, but I wouldn't say no to a 1971 Alfa 33/3 to go with the 917/20, or a 1968-season Ferrari 312 to round out the "Formula 60s" Division. And then there's always the possibility that new-to-Forza brands may get the spotlight too... And something like Matra or BRM coming to the game would make me a very happy camper.