It seems that Monero will not be able to fix the vulnerability in time.
I noticed today they added checkpoints in preparation for the attack:
https://github.com/monero-project/bitmoneroSo.. what does this mean? Will the checkpoints sufficiently defend against the attack?
I know that checkpoints are used to defend against a 51% attack. I would assume they could be used to secure the chain from a TW exploit as well, but I'm not 100% sure on that.