Ashley would probably hold out for ridiculous compensation for him. Where else is he gonna find a manager who is obedient, hated and successfully lowers expectations?
If Pardew was playing the right team every week and we were mid table I'd accept that. However he's shown that when he picks the right team we win games and then he reverts back to his shitty selections once he's bored of winning.
Selling Ayoze would actually hurt. Most players we buy to sell usually have a limit to their abilities but he seems like the type who genuinely has unlimited potential.