Hi , welcome back to playing ball.
The main improvement I have noticed in the last couple of years is that it is not just the top teams who are training every week.
Teams of all levels have come to realise that to improve in the game they need to train hard and not just meet up once a month at a tournament !
This has led to a general increase in skills at all levels, and I think maybe the average age of players has also come down although that could just be me getting older