He does still has a high level. Personally Eriksen is a kind of player i would use the words pleasure to watch. His pass foot, with both feet, football vision and intelligence. Make him 1 out of a million. Eriksen is a unique player. He is so precise with one and few touches football. And Eriksen is a kind of player Harry Kane and attacking player will love to play with. He will feeds you with consistent passes and service on high level. His creative is really high. A baller and footie player.
If he can come to United on free transfer. I think it can turn out to be a good deal and decision. His consistent high quality of service. Even Bruno will be hard to match. Personally i think Eriksen is even more precise with the ball than Bruno.
Eriksen is such a guy it is easy to like Kante and Scholes. Those players dont talk a lot. But they let theirs feets talking. Eriksen is that kind of player.
I can see him suit in as RCM option in a 433 formation. Like this:
Raphinha - Eriksen(8) - Fred - Bruno (8) - Rashford/Sancho + Ronaldo/Rashford . There you have a good 6 line up good enough to battle for league title with a complete solid backline and goalkeeper behind them and with a strong squad depth of course.
Eriksen high ball skill level would suit Raphinha, Bruno, Rashford, Sancho and Ronaldo. All those boys are capable of playing on a really high precise attacking football.
And about how long Eriksen can keep playing? If he can keep hold on with the intensity of premier league. What he has showing of his comeback so far. Eriksen has always been easy on the toes player. Like Modric. So i can see Eriksen keep paying on the top level to 35. He is so precise with his right foot and passes. So he will make the ball run with his precise passes.
United might be without Champion league next season. Eriksen can be a right solution and decision. Make a team and squad that are challenging for premier league as long as possible.
Then bringing on such a high qualities level of attacking and creative players like Eriksen and Raphinha. United will become one of the team that will score most in the league.
Rashford or Ronaldo as CF will score 20 + goals plus next season. If United and the new manager bring on Eriksen and Raphinha.
With the consistent high quality of service from Raphinha, Eriksen, Bruno and Sancho. I can promise Rashford or Ronaldo as United CF in a 433 will score over 20 goals playing regular over 3000 minutes.
Every success behind a CF is = consistent top quality of service. United CF will get this from adding Eriksen and Raphinha to the team. 100 % convinced about that.