From the ERC website:
Teams ranked 1 – 4 will have home advantage. The Quarter-Finals will be:
Team 1 v Team 8; Team 2 v Team 7; Team 3 v Team 6; Team 4 v Team 5
From what I can see, that would give us:
Munster in the top half (and most likely to ranked 1) and depending on results today, I'd say Biarritz, Toulouse, Leinster possibly Clermont if there are weird results. Stade Francais, Saints and yourselves in the bottom half. You get to play the team ranked second, which is almost definitely going to be a French side, away. If there are weird results today, then it'll be Leinster.
Either way guys, you're ****! 😀
EDIT:
I would take Northampton, who ever it will be a big ask.
It can't be Northampton….sorry