I really hope the new MacBook Pro incorporates the improved displays of the iMac (as well as the iPad Pro 9.7"), the higher color gamut and everything. Ever since I got my iPad Pro 9.7", it's been obvious how inferior the iPhone 6S screen is (colors aren't as bright, the whole thing has kind of a reddish tint, etc.) That's one reason I couldn't get a previous model of the MBP, assuming that the new one will incorporate this improved display technology.
I don't really like the idea of extra color. Every time it is bigger than normal RGB or HDTV values it becomes a hassle for the many programs that don't support it.