In my opinion, the power-ups that you can find very easily in the game (buffs, swifts etc.) can't be counted from P2W, the sales of unique accessories / high class items and so forth can be evaluated as P2W, and players should not have problem about the cosmetics and scrolls that will not provide huge advantage.
As Eypomias said, the things that will be sold in in-game store is not certain yet, but I expect that they will sell the things you mentioned. Ultimately, the company that releases this game must earn revenue somewhere. Let them to sell such small things with peace of mind, at least.