I think Suarez is a dangerous match up for Weili for a few reasons.
Weili's grappling success has come from sound wrestling tactics and strong ground positioning. She must drill like crazy, because her technique is so, quick, crisp and clean.
But a lot of this success also comes from her being the best athlete in the division. She has left herself vulnerable to subs, which she has been able to power out of against physically weaker foes. But Suarez is long, technical and strong, I could imagine her catching Weili. The wrestling scrambles would be very explosive in that fight
Standing, again Weili is a better kicker imo, but Juarez had good kicks too and is longer. Weili is a better athlete, but she's shorter and Juarez is long, strong and rangey, Juarez is a decent athlete for wmma standards too.
As a Weili fan I'd be nervous about that fight.
Not to beat a dead horse, but improving her entries and inside boxing game against someone like Juarez would be important, as it's going to be hard for her to strike at range with bigger / longer fighters.