The conference championships have lots of possibilities galore, especially the NFC one, because if the Rams win, it'll be the second straight year that a team plays the Super Bowl in its own home stadium. But if the 49ers come out victorious, they'd be headed for a Super Bowl rematch with either the Bengals (who they beat in both meetings) or the Chiefs (who beat them two years ago). Neither AFC opponent has faced the Rams in the Super Bowl, and because the Rams moved back to L.A. in 2016, this means that there won't be a Show-Me (or I-70 for the roadgeeks) matchup against the Chiefs.
That would be a trip to have back-to-back teams playing in their home stadiums for the Super Bowl after going 54 Super Bowls with not having one. The closet were the 49ers at Stanford Stadium and the Rams at the Rose Bowl. Its crazy to think that there have been so many opportunities and yet it never happened:
Take the Orange Bowl hosting quite a few of the first wave of Super Bowls falling in line with the Dolphins hey-day. Of course they couldn't be on a Super Bowl trajectory in a year the game was played at the Orange Bowl.
New Orleans hosted quite a few of the first wave of Super Bowls, but it has helped that the Saints until about 2008 have been absolute trash (they sucked according to Jim Mora)
Rice Stadium hosted on in the 70s, but the Oilers 60's dynasty was over by then, plus they played in the Astrodome by then.
San Diego made the Super Bowl in 1994, missing their home field by just a few years.
Looking back, I guess it did help that there was a smattering of older Super Bowls played in non-NFL Stadiums. The Rose Bowl hosted 5 Super Bowls never once being an NFL venue. The aforementioned Stanford Stadium and Rice Stadium. It also helps that about half (or more, I didn't do the math) the Super Bowls were played by at least one team that plays in a cold climate so they would never host a Super Bowl anyway (not counting that weird one played at Metlife Stadium). It is just weird the amount of times a host team had a good few years or decade and in the middle of it, their stadium was up to host, and for whatever reason, they couldn't get it done that year.