To be fair, Spurs didn't have to move mid-season, they extended the lease period on Wembley so had until the end of the season.
I'm not saying we will or we won't move mid-season, will depend on a number of factors. However, I expect LoR will handover the stadium December/ Jan time and then we'd need at least 4 months from then, if not longer, to sort everything else out e.g. test events, staff traning/ re-locating etc etc.
The likelihood is therefore that we simply wouldn't be ready to move until the close season anyway.