I think the RS is slightly cheaper than the 2015 Works, because of the wheelset primarily (Roam 30, rather than Roam 40), along with the drive train (raceface as opposed to Sram X1). I could be wrong though.
They look slightly different in terms of geometry, but I’m not sure the angles have actually been released have they?
The G150 (G160) and 900 hardtails are around 20-25mm longer in the toptube to their respective 2015 models, so a fair jump. Whether that translates to the T130 is unknown and whether the head angles have changed on the T130 and G160 I am not sure.
That pictured orange T130 with the Fox forks is the Carbon version I think, due out in January 2016. Dread to think how much that will set you back! £4500 at least I’d have thought.
Just sold my T130 works 2015 on ebay – I am really going to miss it!