Well, a wireless and smaller PSVR could turn out to be very interesting next gen. Though I generally prefer when manufacturers innovate through software (e.g. Dreams, Splatoon) rather than hardware (e.g. Vita, Wii U). The PS4 has given me loads of fun so if that's a boring console, I won't necessarily be unhappy with a "boring" PS5 either.
Consumers have largely ignored novel features on the PS platforms so why wouldn't Sony go with something that works instead?
2000: PS2 backwards compatibility (with PS1)
2003: PlayStation EyeToy
2003: PSX
2004: Cross Play (Final Fantasy XI cross play between PS2 and PC)
2006: Remote Play (PS3 on PSP)
2006: Sixaxis
2006: PS3 backwards compatibility (with PS2 and PS1)
2008: PSP Cradle (PSP on TV)
2008: PlayStation Home
2008: PlayTV
2009: PSP Go
2009: Stereoscopic 3D gaming
2009: Invizimals (real world AR monster hunting)
2010: PlayStation Plus (on PS3)
2011: Xperia Play
2012: Cross Buy
2013: Remote Play (PS4 on PS Vita, PC, Mac, Mobile)
2013: PlayStation TV
2014: Share Play
2014: PlayStation Now
