I think there are a few conflicts possibly fermenting.
Galactic Alliance Vs The Mando's
Galactic Alliance Vs The First Order
The Silver Jedi Order Vs The Mando's.
I think in the first and the third conflicts the Mandolorians would be the aggressor faction. Their testosterone fuelled system of "honour" is something that craves war constantly. I think a war with GA is on the cards due to them both having territory close to one another in the Core, and GA being prime pickings. That being said, a war with the Silver Jedi could also be on the cards. The Korriban debacle epitomises everything the Fett fanboys hate, a force user murdering thousands.
That being said, it wouldn't surprise me at all if the Galactic Alliance moved against the First Order. In any conflict between the two, the former would be the aggressor, and it would fit into their MO with dealing with us. They've attacked us at every turn during our attempts to establish ourselves, and are murderous fiends. It wouldn't surprise me in the least that they try to destroy us, especially after having practically destroyed the Omega.
I realize it's lazy, but I ask the same question as above, and would enjoy hearing others predictions and analysis.