Follow
I fully expect that, if Twitter actually goes down hard with the sort of insurmountable technical problems outgoing engineers have described, they'll dust off their hands, perhaps roll out a cheaper new system, and sell the entire archive directly into the unaccountable data ocean, or turn it into part of an AI product, or an effectively re-identifying aggregator
In other words, now is a fantastic time to "delete" (I get the feeling that still means something, when Twitter is clearly doing all they can to cut down on storage) all your stuff on Twitter they currently have license to mostly do with what they wish.