The LA Olympics start on Friday, July 14, and I highly doubt Wimbledon will want to conflict with it, which is what is going to happen if it keeps its normal slot. (But if Wimbledon doesn't budge, it probably spells the end of tennis at the Olympics as we know it.)
Some shuffling of the schedule is needed to make things work in 2028. One solution is to move Wimbledon to the late May/early early June slot that the French Open normally has, and move the French Open to fall (like 2020). Another is to move Wimbledon following the Olympics and try to make it work like 2012.
Yes, but the Olympics runs through the 30th. They can put the tennis in the 2nd week. Most tennis players will be out of Wimbledon the first week, anyway. Most top players will prioritize Wimbledon, but that's not a tragedy. Gives other people a chance.
I really don't see two (or 3) of the most important events of the tennis calendar changing their schedules for the Olympics. At the maximum, Wimbledon could take out the week they added after the French Open. You can't play the grass season after, and give up the North American HC season. You could push the No. Am. HC season later, which wouldn't be terrible, but I have to say, I'd be shocked if tennis disrupted its usual schedule this much for the Olympics.
What this kind of proves is that professional tennis doesn't belong in the Olympics. I have enjoyed it, but others have argued against it for a long time. Let the college kids and the juniors play it, and leave the pros to their usual schedule. There was a time when the Olympics was meant to be 100% amateur. Take out pro basketball, pro soccer, pro hockey, too, while you're at it. It takes away the star-power, but it gives younger players a chance to shine, and is more in the Olympic spirit.