Was wondering this myself.
Bug fixes and the like are all well and good (and needed), but, we need more new content to see us through until the next expansion.
Next expac just announced as launching in Feb 11.
This means we get GU57 in August and GU58 in November.
Just been announced at fanfair that GU58 will include
Possible new event besides frost fell and nights of the dead.New itemization for sf bossesReitemization in 1-20SF Hot zonesMore armor pieces for marks
So, apart from a 'possible' new live event, no new 'content' here either (im sure if there was any new zones, dungeons or gameplay content it would have been mentioned before the above)
So, in each GU from Sundered Frontier launch to Velious launch the only new gameplay content we have seen is
New Halas (delayed SF expac content)
Battlegrounds (delayed SF content)
Icy keep raid zone (delayed SF content)
Underfoot Depths raid zone
Storyline system (new content? or just a fancying up of the quest journal)
PvP Warfields
New live event
(Many thanks to Feldon over at Eq2wire.com for the fan faire updates)