For all previous expansions? No probably not. WotLK would be the expansion to stop at if that even becomes a consideration as it's the last expansion with the most positive nostalgia before it soured. Cataclysm had plenty of systems and dungeon/raid problems that people still complain about today, MoP had it's pvp, valor and daily/rep gearing issues as well as legendary quest whiners and it's pretty clear what people think of WoD and onwards.