While I'm of the mind it doesn't matter much what you call 'em so long as you play 'em, some terms of reference can be nice. Stuart over at Robertson Games has coined the term "Neoclassical Games" to encompass a lot of what we now refer to as the firestarter terms "retro" and "old school" RPG products.
I'm fine with this. They aren't the original, classic RPGs we played, but they're a direct attempt to return to that style. I'm not so sure about it being classified as a reaction against the Baroque style of 4e alone, as I think 3e was pretty ornate in a lot of ways.
(However, does this mean now the usual flamewar suspects can refer to 4e as "Baroque-en"?)