Restoration:
If you mean "restore Judaism" then you have to deal with 2 problems: it was a yoke neither we nor our forefathers could bear (Acts 15) and it was only a reminder of sins (Heb 9).
If you mean "restore all things" (before evil came) then you have something that works.
The DofJ before the day of the Lord/judgement:
Mt24:19. The DofJ happens before the universe is judged. But the day of judgement was allowed to be delayed, and was.
The world to come.
If Paul meant to include an future episode of Judaism, he missed his big chance in Acts 26 on the fulfilled hopes of Judaism, and in Rom 4 on the promise to Abraham being about the world to come "of which we are speaking." This is after the day of judgement, which is why justification from our sins matters so much and is the offer of the Gospel.