Fanatec should setup a compatibility guarantee with Sony. If you buy a Fanatec product (let's say less than 6 months before a new console release date?) and it turns out to not be compatible with the next-gen console you can return it for a full refund (just pay shipping costs).
This could potentially a few things: 1) get more transparency between Sony and it's trusted vendors 2) increase sales 3) put peripheral support in the spotlight instead of an after-thought; make it part of the selling point to buy said console right away. It's not like Fanatec/Thrustmaster are new to the Playstation/gaming industry. There isn't a single reason why this shouldn't be happening, except that Sony has the wrong upper management to greenlight something like this. Even Sony will still make more licensing revenue from moves like this. Can someone think of a downside outside of the return hassle for vendors like Fanatec/TM (who knows maybe they'll like the product enough to keep it for their PC)?
Jerome