I think players have a very cromulent point with the fact that xp pots are going to be worse. I hope they have SOME plan for that, like making them cheaper in the store. Also my plan B option to just lower the XP curve would help with that as well, and it's stretchy to encompass many crazy XP changes.
It would be more sensible to lower the cost of digital items given the abysmal state of the economy in many countries today, after all one can't get water from a stone, as the saying goes. Smaller more affordable transactions will equate to more money in the long run, since the items for sale in question are digital, non-expiring, and will not cost anything to make after the initial design. But, if the game becomes too tedious and prices go up or even stay the same, then the client base for the game will most likely shrink, as will any potential profits. The current business/marketing policy which seems to be employed by SSG for DDO has never been shown to be successful, i.e. introduce problems into a game then sell solutions to play the game as it was normally intended as cash shop items or microtransactions.
I would much rather the dev team focus on quality content and systems, and fix the issues with broken things, such as certain feats no longer working with tree toggles, or alerts being triggered from normal dungeon play throughs, or the character bank space missing from the store after buying the 'support pack', or any number of many many other things which actually need to be fixed. From what I can tell the majority of the feed back has been against or very negative about the xp change, save for a few posts which look like trolling here and there. Not to mention it looks like most suggestions for alternate ways of doing things have been ignored. It seems that way at least.
I am betting that once the changes go live, regardless of the feed back, there will be a sale with in the next three to six months on xp pots, otto boxes, or some such other deal. Probably marketed as another limited time offer, or a get it now for 20% off or what not, while still costing over 10x's the amount of what other mmos might charge for the same item.