Infodump: Current trend for StarCraft and End game
Though I do have to ask, what exactly do you think would've happened in the end of the game if we continue along with our current course of actions? Also I don't suppose we can find out what you had planned for SC verse?
Assuming you made a good plan to diplomance the Protoss (you'd be at a -50 due to inherent Imperial xenophobia), you would be attacked by the Dominion at the neutral grounds. Raynor has a traitor in his ranks, and if you successfully help him purge the traitor, you'd be able to ally with both him and the Toss.
If you didn't diplomance the Toss, or failed at it, shots may or may not be fired with the Imperials probably shooting first. The Dominion would not have attacked at that point, and you will have started a cold war with the Protoss, kind of alienated Raynor, but neither faction will be out for your blood. They simply have too many other things to worry about, and the fact that you even came to talk first means to them that you're at least somewhat reasonable unlike the Dominion.
In any case, you'd have maybe 3 or 4 months to build up and prepare for the next clusterfuck, which would have been someone trying to assassinate Raynor (roll for survival), Zeratul (Survives regardless), Mengsk (Roll for survival), Artanis (roll for survival), and Kerrigan (survives regardless). Assuming Raynor survives, he would come to you for help for both himself and the Protoss (cause the Toss are too prideful to ask), and you'd have the option of ignoring or helping in varying measures.
Depending on how much you help, the situation would start to escalate (with you helping a lot escalating faster than if you don't help) until it's revealed that Amon has been revived far ahead of schedule. That agent that got away from the Ghost ship? Turns out he's not bluffing.
He actually is one of the best of the best in terms of physical ability and mental acuity and he's accelerated many timelines due to the threat the Imperium poses.
A mix of Wings of Liberty and Heart of the Swarm then begins, with Kerrigan seeking out the Primal Zerg after the assassination attempt and Jim starting to look for the Xel'Naga artifact pieces and taking down Mengsk (or if Mengsk is dead, swooping in to create a new, more democratic government).
I don't have much more than that planned out due to how crazy the game can get and how much things can derail, but end game would have been an epic free for all between the Imperial Gods, Amon and Greater Hybrids, and the Voice in the Darkness. The Voice is by far the greater threat in the Warp, but Amon has an utterly massive army at his disposal, and even with the Terran and Protoss behind you, you'll be hard pressed to win. Hence, you need to get the Zerg behind you as well in order to kill off Amon's forces.
Oh, and a decapitation strike won't work either because Amon has a ton of clone bodies that he can just take over and revive over and over again, hence the need to kill off all of his forces.
I think that you guys would definitely have been able to achieve victory in Starcraft if you didn't do anymore stupid things like invading the Leviathan.
Comments and questions?