I'm sorry for speculating over others' forecasts about Apple's products, but to me it makes no sense spending out a new name like M2 only for adding 2 more graphic cores to M1, as it would offer just a little increase of performance, an increase that is already almost possible now with the "thermal pad trick"Sounds like the M2 is just an incremental modest speed bump, and nothing really too major or evolutionary.
It makes more sense that new M2 will be based on new manufacturing process (3 nanometer that are awaited also for next year's iPhone processor?), together with a marginal change in the architecture... i.e. Apple could adopt Intel's tick-tock innovation approach