"I also think it's looking at the Wii SKU that we did. It did really well but there's still questions with sales numbers... whether it is something that annually we could revisit year-on-year [and] would sell the same number of units year on year. [For] something like football, you need the newest content and there's lots of changes, but with F1 the changes with the teams and drivers are really quite minimal, so instantly you're quite stretched for new content. I think when you bring this over to the Wii where the audience is perhaps a bit more more casual and they're less likely to buy it year-on-year, you have to look at a slightly different strategy." - Game director Paul Jeal
These are the reasons why you're not going to see a yearly F1 game on Wii U, but the team does see interest in bringing F1 Race Stars to Wii U. As we said awhile back, there was a rumor of F1 Race Stars coming to Wii U. Seems like that's actually going to happen now.