If we are talking about the least safe records going forward, here they are in what I believe is the order of their likelihood of being broken (ignoring very specific minor records).
1) December Opening Record - This is not even in doubt
2) All of the X-Day grosses on BOM after the first 4 or 5. The last two weeks in December are the biggest box office weeks of the year. The Force Awakens is going to have some crazy daily numbers. I fully expect it to break whatever the record is for most consecutive days over $20M. This would probably give it at least a tie to the fastest to $300M and $400M records as well.
3) Largest First Day - Currently held by Deathly Hallows Pt 2. However, Star Wars gets to open at 7pm on Thursday vs midnight, and a lot of people skip that final day of school before the winter vacation anyhow. I don't think this is a guaranteed broken record, but I think it is fairly likely.
4) Largest Opening Weekend - I don't think this is locked and could easily be destroyed by snow. If the weather cooperates, I think Star Wars could manage to top $208M. I doubt it will be by much if it does, but I think that Friday could make up for any shortfall on Sat/Sun if the stars align. $300M is pure fiction though
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5) All time domestic gross. I think this is more shaky than the opening weekend, as it would require at least a near record weekend and great second/third week legs to guarantee. Star Wars isn't going to play out like Avatar and get a close to 10x opening weekend multiplier.
If you take Return of the King's first 4 days as a baseline (to account for the modern 3.5 day weekend, and the fact that ROTK was a Wed opener), Star Wars would need about $200M opening weekend with similar legs through the holidays and January to beat Avatar.
Beyond some individual territory openings/grosses, I don't thing we are going to see records fall overseas.