The best in motorsport would be if Alosno ended up in Indycar but lets wait and see. I can see him dabbling in a few different series next year and not sticking to just one. He may do sports car, Indycar, endurance etc. Don't forget that Jenson Button hinted years ago that they will one day both end up doing some racing in Japan together.
Regarding the Indycar thing, there's a confirmed test at Portland booked and all sources point to Alonso steering a car. It also suggest Andretti will sorta kinda run a car for a new driver next year but from a different workshop and it'll be a Chevy powered car, not the Honda that Andretti uses. To me, that is the biggest potential news of the whole show if Alonso uses Chevy power, word on the street was Honda was one of the main pushers for the gig.