This seems extremely likely. From what I have seen on other products. If you are a small company, it’s almost impossible to make a device for more than 10 years before you have to redesign on new parts.

Tec Toy built systems with original ICs for as long as they could (even when the likes of AtGames had moved on to cheap-o reproductions), but they are discontinued so that's impossible. There is no way to get buy a new 68k nowadays, for starters. TecToy has used clone chips for a while now.