Well..... ordered a 23mm and a 50-140 f2.8 from
MPB today..... lineup now stands at 16 & 23mm primes for travel and the 16-55/50-140 for most of my shooting, think I'll sell on the excellent 12mm as 16mm is plenty wide for me!!
Decided to pickup another 16-55 while A: the cashback offer is on and B: I could still get one before the prices hike (£850 new in a lot of places now), cheaper to use the zoom than buy 2 bodies for now when I'm out landscaping or the few events I do. Very interested in an XT2 later in the year though and I suspect the 16-55 will (again) get sold on later once I have XP2/XT2 as I do much prefer using the primes but practicality rules sometimes!