Or it may be the best season yet
Lots of fluff will be cut so I dont think it will be as rushed as you may be imagining
D&D said that after they wrote the outline for this season they saw no reason why it couldnt be the best.
I mean, what did Dany do in Meeren that would require stretching it out till next season? What did Stannis do at the Wall? He has spent most of the last book camped out in the snow. Cersei did nothing but plotted against Maergery and held council meetings. All those stories work in a 1 season format with the natural endings I listed which George ran out of room to include due to a lot of meandering.