Aspas won,t move during this January transfer window, probably in summer but not now. He has grown and played all his life in Celta Vigo and with his team fighting in battle relegation It´s very difficult to get him unless We make an extraordinary bid or payment his clause and player would agree.
In any case, I think He would prefer to go Swansea than Chelsea because He´s still young and needs to play, not warming bench
One last thing: Aspas is not a usual striker. His definition is good but not like most of powerful forwards. He plays as a permanent moving striker, trying to find spaces for him and creating for his mates, keeping and passing ball when He´s on a flank or at the midfield.
For me He is top class. He is able to dribbling in very little and make long diagonal like Messi save the distance of course