No. Just no. What if he accepts the renewal and we struggle to sell him? Fuck no to offering him a renewal, unless we make him an insulting offer in the region of 2.5 million.
If he accepts the renewal we:
1. Pay a lot less to him next season;
2. Dont lose an asset for free next summer.
The risk of him not being movable at a reasonable salary such as 4m imo isnt likely to materialize and its a risk I would take.
Of course he isnt likely to almost halve his salary this summer, but in that case force him out, lets not lose another player for free.