Well, the 34UM65 details appear to now be surfacing, and pricing is looking to be around £500 to £550.
Some will be disappointed to see that this is a 2560x1080 screen, but personally I think that works in it's favour as a gaming screen - far easier to drive without massively expensive GPU setups.
But if this screen is £500+, I can only imagine it's bigger brother, the 34UM95 3440x1440 will cost more like £800+
The 34um65 kind of makes decision making hard for me. Go with slightly wider, but still large screen, or get triple setup again....
Oh, PS: Apparently out around the 25th or so - I'd have to dig through emails to confirm though.