I think it's a little silly to think they won't offer any racing wheel for Forza 5.
Well, I can only presume many, many owners of Microsoft Wireless Speed Wheel will also not be very happy once they learn they can't use it on One.
I really hope MS will solve this situation. It is their Top3 first-party franchise with strong emphasis on branded "FM" wheels in past 5 years on current generation.
People who were buying Forza Motosport Fanatec wheels - CSR and CSRE were officially branded as "Forza Motorsport" wheels, while PWTS and GT2 were *only* branded as "X360" wheels - were also buying pedals, shifters, wheelstands, cockpits, etc. Every one of us spent at least 500 on their Forza setup, while actual overall expenditure were probably higher.
What MS is *suggesting* now is not only we should buy new console + game + Gold subscription (at least 600), but we should invest even more money on the wheel that will probably work with XBOne only (I mean, if they offer XID/HID wheel but with locked XBOne only functionality in wireless Xinput mode - and they do not offer HID for XBOne, meltdowns will be glorious).
Also not even to mention how any *new* wheel will not be able to match performance of CSR/CSRE models and CSE/CSP pedals in some normal price-range.
I don't know, longer I think about the whole situation more I do not like it.
I really, really hope the E3 will give us answers. HID-support would be Godlike for driving games. I really hope Microsoft has come to the same conclusion by some mean.