Most of these tracks could and probably should return.
I've nothing against the newer tracks if they generate significant interest from locals. If, however, like Abu Dhabi and Bharain, indigenous locals can't afford a ticket even though they have been compelled to fund the event through their taxes, and the event therefore has to take place within a vastly expensive security bubble in front of a tiny audience of mostly well-heeled Europeans and local elites (and swathes of empty grandstands), then that's bad in a number of different ways. In the case of many flyaway races the whole set-up stinks and is more likely to alienate potential F1 fans in untapped markets than to get them interested in the sport.
"F1 is coming to town!"
"Oh, great. I like fast cars and racing. How much are tickets?"
"A year's wages"
"Oh, never mind then. How many tickets have you sold, out of interest?"
"Seven"
"Oh dear. Somehow I can't see this event lasting too long"
"Oh, it'll last because you're paying for it"
"Oh".
Apart from the basic iniquity of state-funded events, the lack of attendance makes the sport look naff no matter how plush the facilities. I don't think it's just rose-tinted glasses to look back at events held in the 80s and 90s at ropey venues in F1's core markets e.g. Brands, Donnington, Imola, Estoril, Zolder etc, and feel that F1 emerged with a lot of credit. Okay, the facilities weren't great but the people wanted the race to be there and there were big crowds and tremendous enthusiasm. That comes across on telly. Hopefully Liberty Media will get that.