I'd rather not because it'll be a big job. I'm pretty sure it's potbound but showed no sign of distress last year. Can I wait until it does? Photos last May and a minute ago
Looks plenty big enough to re-pot! You could divide it and put it in 2 or 3 pots or in the ground I don't expect it will be easy getting it out of its pot though. To divide it you will probably have to cut through the top bit with a pruning saw, then pull the roots underneath apart. Looks as though it needs dividing, getting a bit congested.
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Having just about won a tug of war with a bay tree, I'm not looking forward to the battle.