I think it is envisaged - hoped - that trainers may set up satellite stables? The Marsh operation currently has one, which is doing a good job of turning around some former northerners..mind you, Pitty has been doing just that for years. But, using an existing barn and local staff.
As for Canterbury trainers relocating...hmm. Not sure on that. From Rangiora, which will close - when? no one seems to know, but the CJC are determined to see the back of it. Woodsford maybe? but, as mentioned by NM, there are other things to factor in, such as the cost of commuting from Rangiora daily, or maybe selling a house and moving into ChCh..? with the current insanity surrounding house prices/availability, good luck with that. The other three mentioned have properties off the Rangiora track, so...I'm sure they must be having plenty to think about.
Will make little difference to Parsons/Coulbeck, the Frye's, Centaine Spittles...inconvenient if not available for jumpouts, but the beach isn't going anywhere.
Timaru trainers? That track is down for closure eventually, shame, it is a really suitable venue, nice and central to all, good track and facilities. I don't see Steph Clark [ child at school, partner employed ] Bruce Tapper [ farmer ] Warwick Coles, Philip Inglis, Len/Lacey Stewart, or any of the others based there wanting to move. I just can't.
And, as well as the above, those trainers thinking of relocating also have to factor in the business reality of increased cost - not just housing, travel, etc - but the increased basic costs of rental/track fees, which will be considerably more than what they are facing now.