Ex-Dragoon, my gut feel is that we (1 Wing) will operate "composite" squadrons (i.e. 2 a/c types, or more) at many of the units. This was simliar to what used to occur at 402/408/427/430 with Kiowa and Twin Hueys, and at 450 Sqn (my alma matter) with Chinooks and Twins flying RCMP SERT (albeit a short overlap of about a year and a bit). Here's my total guess at how things will bed down
403 Gagetown - CH146 OTU (ops trg unit) and TALC (Med/Hy lift) Ops
408 Edmonton - CH146 Ops unit and CU161 (Sperwer and follow on TUAV) OTU and Ops
427 Petawawa - CH146 SOA, TALC SOA (and TALC OTU?)
430 Valcartier - TALC Ops and CU161 Ops
I really don't know what will happen with the Reserves, so I didn't address 400 or 438 Sqn...airframes will be tight, so unit relevance will have to be proven and maintained if any resources are to be given their direction.
This is just a quick guess and I have to be honest, have not thought about anything to far out of the existing box, although you will occasionally hear about a !st Special Operation Aviation Reg't bandied about from time to time...we live in interesting times!
Cheers,
Duey