Zac Brown says he wants to see McLaren at Indy every year. This is mere speculation but could this be a precursor for McLaren to return to IndyCar as a chassis manufacturer?
Another chassis manufacturer competing with Dallara, I think would be good as IndyCar could then finally shake off the spec aspect. Of course this would have to be cost effective for both McLaren and teams alike.
http://classic.autosport.com/news/report.php/id/129127