I'm all for more doubleheaders if it means the Xfinity Series and Truck Series can have their own identity at a few new tracks.
IndyCar/NASCAR at Texas sounds great.
IndyCar/NASCAR/IMSA at Indianapolis Road Course sounds great. Bring back IRP into the fold for Xfinity & Trucks on Friday Night and Saturday Night.
Not that big of a fan of IndyCar running the Charlotte Roval. Pocono road course was mediocre to me in iRacing, haven't played it in months though. IndyCar doesn't seem appealing at either of those road courses to me, maybe NASCAR sure.