It came to me while I was thinking , who would win in a fight...the Dominion or the Borg?
Then I started thinking how would this happen, and why, etc.
And it got me thinking , maybe the Borg , unsatisfied with it's attempts to assimilate and defeat the Federation , has turned it's direction towards the latest War the Federation almost lost to. So the Borg begins to study and analyze the information of the Dominion War with the Federation , and realize the MASSIVE gains they could get from the assimilation and conquer of the Dominion and the technology they have. Imagine if you will , thousands of Jem'Hadar not reliant on ketracel-white, With the ability to shroud , assimilate , shroud again , and move on. A deadly force indeed.
Starfleet long range probes pick up the first encounter between the two factions.
And what they see is a devastating battle resulting in massive damage to a Jem'Hadar fleet and a Borg Cube ...moving on , damaged , but in persuit of the remaining Jem'Hadar ships. The Borg / Dominion War has begun.
Section 31 and Starfleet suggest that if the Borg win this conflict , it in turn will aggressively turn it's direction towards the Alpha Quadrant and the Federation. But they are also wanting to see how this war turns out , so they agree to help fleeing species caught up in the war , and to double the ships patrolling on the out skirts of the battlegrounds and Starfleet bases.
How will the Dominion retaliate to this on coming threat? How will the Borg respond to the Dominion known kamikaze tactics when all else fails in their battles? Is this going to be one of the most massive battles partaken from both sides? Or a quick , devastating , maneuver from the Borg ? And what of the Founders? Can they be assimilated? They can be infected by a virus ... so the Borg might see something there ..Shapeshifting Borg..now THAT is a scary thought ...isn't it?
So please ..I have ideas , and was wondering how we can turn this into a MASSIVE space epic that I always thought it could be.