Yes, Manchester United fans have high hopes for next season with the arrival of 2 players to strengthen Manchester United's attack line and the victories achieved in pre-season matches seem to give strong hope that Man United might improve a little, but yes, we can't expect too much because we are afraid of disappointing because the competition in the Premier League is not easy, other clubs are also trying to show their best performance by bringing in quality players if Amorim can build chemistry between new players and existing players, it will be easier for Amorim to create strategies because the players have a close relationship so they can work well together.
Last season Bruno Fernandes was the key player in the Manchester United, creating chances that the struggle to convert into goals due to lack of strong striker. Bruno consistently scored and provided assists, making him their best player throughout out the season. But With their current squad, Manchester United's performance is likely to be much better than last season that they lacked a strong striker which affected their scoring ability. However, with the signing of a player like Bryan Mbeumo, they're likely to see significant improvements in their attacking line. Because Bryan Mbeumo scored 20+ goals in the Premier League for Brentford last season, and Brentford performed better than Manchester United in the table. However, I understand that Manchester United just had a bad season, if not Brentford wouldn't have finished ahead of them. But I'm expecting positive changes in Manchester United attacking line this coming season.
In the end the player has the final say of where they would like to go to. Everyone thought Sesko wouldn't want Manchester United because they're not participating in any European competition this season but the player still prefers them to Newcastle that is playing the champions league. He may have his reasons but everyone knows Newcastle is doing better than them currently.
I think Benjamin Šeško will like to choose Newcastle because they'll be playing in the Champions League next season, and Manchester United won't. Playing in the Champions League is a big opportunity for him to showcase his skills as he's still young.