Earlier quoted context omitted.
I don't know specifically what you are referring to and I doubt many other folks have any idea other.
You say it's "outlandish" to consider alternatives, but new ones are starting all the time. Every advance of the post-FLOSS era has started just like this. Big players getting out of the way can only help evolution along.
I don't think 98% of readers here have any possible candidates in mind. We don't have any idea what might be better, or why.