I don't mind if the inventory is receiving an increase in size, but also if not because me being a former WoW player with an inventory of 40*6 slots and a whole bank, so in total about 1200 slots, it still gets packed, so my advice on this is: Stop hoarding and sell shit you don't need after all the amount of gill you can have is unlimited.
The only thing I would like to see is a materials inventory, but again it's not anything I need. After all, I can still sell materials