Hey, I am all for changes. I think balls will be easier to change too.
That's good to hear.
I've been following tennis for several decades.
For me, the pinnacle of the sport occurred during and just after the Borg-McEnroe era. We witnessed a real battle between two distinct styles of play on all surfaces ... the S&V style -vs- the Baseline style. During that period, we also witnessed significant evolution in the equipment the players used and in other important areas that affected the sport (eg. Sports science, training methods, mental skill development, etc.). And during that period, there was a wider variation in playing conditions and surfaces than there is today.
I enjoyed watching a sport where skilled tennis players relied more on their tennis skills and nous for success than their physical athleticism and endurance. For me, modern equipment and playing conditions has shifted the sport more towards being an athletic sport rather than a skilled based one.
For example, modern specatators seem to be highly impressed when a player pulls off a series of clutch volleys or a great offensive lob. Rushing the net behind a first serve and hitting a put away volley is often greated with wonderment. But all of these things were common place back in the 1970s.
I think we can return the sport to those days and still retain much of the athleticism simply by reducing hoop sizes and outlawing copoly strings. It will still be a great spectacle but offer up a lot more variety.
It would also mean that junior players could develop much more individual games suited to their desires. More flexible coaching methods would produce a variety of players that could compete. Move away from the academy production lines of the past decade focused on producing clones that play a baseline game.
We also need much more surface variety. Grass should be very fast. Hard Courts should be very different from very slow to very fast. We should never see a situation where two or three players dominate on all surfaces. Like the old days, there should be players that dominate on grass who find Clay a challenge. And vice versa.
For me, that is the required future of the game. It needs to change to keep a global audience engaged. Otherwise, the Media broadcasters who provide most of the $$$ for the sport will jump off in favour of the really huge sports ... Association Football (Soccer), Basketball, Golf, and F1 Motor Racing globally ... and local / regional sports like Australian Rules football, Cricket, American Football, Baseball, Rugbys etc.
Tennis is in a unique position in that it can be played at any hour of the day in most parts of the world. There is always an audience somewhere ready to watch big tennis matches. It can be played indoors which removes the climate influence to some extent. It can be played at night under lights. What it doesn't need is hundreds of players basically playing the sasme matches over and over all resorting to the same style. With the current scoring formats, that gets very boring very quickly for most GENERAL viewers. (Tennis fans will always be interested.)
Tennis could also tinker with Scoring Formats to make it more exciting. But that is a whole other discussion. Remember Moratoglou's Ultimate Tennis Showdown format? That made the sport much more exciting to watch afaic.
