I really can't think of any red flags. I expect it to be no different to what we have now. Buy cosmetics if you want to. Nothing to worry about.Specifically business practices. I don't think most people have problems with selling paintjobs and cosmetics, other than the price hike when ARX was introduced. This isn't an ARX post though.
The question is, what design/monetization decisions, if any, are you worried about or would concern you if added? If leaks are to be believed, there may be a huge amount of new cosmetics added to the game.
Also what price hike for cosmetics? I get them cheaper then ever these days. All my purchases are subsidised by free Arx which makes them somewhat cheaper then before.