Difficult to say. The double s Form has to stay (for small and capital) to not deviate from Swiss German too much (has to stay compatible). Generally older people think capital ẞ is ugly, but maybe this will change over generations. Best bet (for me) is that all ß fall out of favor and Germany goes the Swiss way. Let's talk in 60 years again.
When I first heard about it a few years ago I did indeed think that it was ugly-looking and the whole idea rather pointless.
I've recently re-discovered it, though and somehow this time around actually taken a liking to it, and have smuggled it into a few reports I've had to prepare since then.
