Wimbledon has generally resisted following suit in certain rules implementation as other grand slams but this year they agreed to allow on-court coaching.
Coaching has been a complicated issue in tennis because there are players who are both for and against it. Generally, though there was positive movements towards allowing it which is why we have this current model where a type of coaching is allowed. Wimbledon is set to join the rest of the grand slams in allowing that after not doing so last year.
It will be an interesting tidbit to observe as will the doubles change that will be implemented this year as well. Doubles matches won't be best of five like last year but they will be best of three. Nick Kyrgios famously criticised the best-of-five format last year by claiming that nobody really wants to see such long doubles matches.