I really don’t think any of these things will really work. And the “need” for a new reboot is still built in, just kicked on down the road.
I also think that content isn’t really the problem. It’s marketing, distribution, and audience problems. DC is currently stuck with one audience, and while it tries to appeal to a new one, it doesn’t realize that either it needs to completely lose the old one (which could work, but I think is a bad idea, as someone in the old one), or figure out that their problem isn’t actually a content problem, but a TYPE of audience problem. You’re not appealing to “normies” or “men” or “women” or any group like that. You’re appealing to people who find exploring your universe exciting and fun. If you accept that as the primary thing you’re trying to reach, instead of big huge categories that I don’t think are that useful anyway, you’ll be able to figure out how to appeal to people better.