As someone who only watched the GP on tv Monsters addition to the GP experience seemed to be 4 pretty girls pulling faces when the semi and final draws were made,maybe it was different at the track but for us TV viewers absolutely nothing we hadn't seem before.
The chance of any GP in the US will depend on the usual criteria ie BSI finding somebody to put up the money and shoulder the risk,as was the case in the past in Australia and this year in New Zealand.Can,t think of too many names Stateside that jump to mind,maybe BSI could approach their new friends,Monster Energy.
I think this is a bit of an own goal by the Polish Authorities,as Sundays in Poland are quiet most fans travelling abroad look forward to taking in a league match on Sunday.I can maybe see the thinking of not running the top division as not to distract or affect the attendance of the G.P but there doesn't seem any reason while the 2 lower divisions should not run.