Restore the site on the old domain, or register a new one?

Question

Search Engine Optimization

I had an English-language news aggregator that worked for a year and a half, gaining an audience, receiving natural backlinks from bold and medium-sized sites. There were 1M pages in the Google index.
But at one point I had a difficult offline situation, because of which I simply forgot to pay for the server on which the site was located. As a result, the server was deleted, I have no backup.
The site has not been working for 2 months, there are 400K pages left in the index. During this time, I recreated the engine, already at the stage of completion. But the news base that remained in the index will no longer exist.
Please advise what is the best way for me to proceed? So far I see 2 options: put on the old domain (but I don’t know how Google will react, how long it will index new articles and forget the old ones); register a new domain (of course, I would not want to start again from scratch. Is there a function in the webmaster to move the site to a new domain, but then the old index will also be transferred?).
I'm at a loss) I hope someone knows the correct solution.

Answer 1

old is better, always better

Answer 2

Old

Answer 3

If my opinion is interesting - only the old one! Colleagues are 100% right!