Agreed, I think he is 23 now and if he was going to make it, this is the season. From what I have seen, he's missing speed of thought. Whether that can be coached into him or not, I don't know. I don't think he will ever be good enough to play for us but he might make it at a mid-table or relegation club. He needs to be playing now though so it is probably the best thing for us and him if we part ways soon.I'm not convinced on Wilson either. I think he will make a good career for himself, just not at Liverpool. I always have the impression that he's trying too hard while at Liverpool, especially in pre-season games, like he has some sort of mental barrier that he can't get through, and it's affecting his decision making.
If these reports are true and Klopp really wants to keep him and not loan him out, it should be everything Wilson needs to hear right now. That should calm his nerves and gear him up for the chance he's been working hard to earn, especially with Shaqiri's recent fitness issues and Mane's unavailability.
That said, I won't blame him if he decides to find a new club where he will have a first eleven role but with all the games coming up until New Year, maybe it wouldn't be unreasonable to keep him until January window. With various deals around the league in mind, I don't think his value would be reduced at all, though I think that it's not likely any potential sale would be as high as 25 million pounds, at least not the guaranteed fee.