If they want to be serious about this, they need games. Not only a handful that they proudly announce at the September event every year, but most/all major AAA titles from day one.
Then, if they want to reach as many people as possible, they need to offer an affordable product that has enough power to properly play games. Sure, it's nice that the MacBook Air can do some light gaming and it's quite impressive for a device without a fan. But the GPU of the base M2 doesn't really cut it for triple A titles, and 8 GB of RAM in the base configuration won't motivate developers to port their games over, especially as it's both system and graphics memory. Developers already complain about the Xbox Series S, and it comes with 10 GB.
So I highly doubt we'll see more than the usual MacBook Pros with M3 Pro/Max, that sure can do some gaming, but are also $2,000+ devices.