The *only* useful thing that could come out of this is that bitcoin could finally jailbreak out of the 1 MB artificial lock-up, and segwit is in fact making this worse by trying to increase a very last time the amount of transactions per block, by delegating part of the block data outside of the "official" block size, but this cannot, as far as I understand, be extended yet another time.  In other words, segwit is the "end of the road" for more transactions if the jail of 1 MB blocks remains.  Yes, it will get us some temporary relief, but on the other hand, it has graved even more into stone the 1 MB limit and the "danger of hard forks" (which is a non-issue in most other crypto coins which do this regularly).

Once you break the jail once, you're free for ever.  However, if bitcoin doesn't succeed in overcoming this silly 1 MB limit now, it may even be much, much harder in the future to do so ; this is why it is of utmost importance that 2 MB blocks (with or without segwit) are adopted, to kill this 1 MB hard wall once and for all.

That doesn't solve fundamentally the essential design flaws in bitcoin, but at least, it doesn't turn a silly error into yet another extra fundamental design flaw for ever (I'm talking about the 1 MB limit).