Romulan War

In the first episodes of season five we will see the beginnings of the Romulan War. We will be able to see (as we did in United) the Romulans making their plans and their interactions among themselves, but they will remain unseen to the humans and Vulcans.

There will an episode on Vulcan dealing with the Romulans covertly trying to infiltrate the Vulcan government. T’Pol, and the Vulcans in general, will not know that the infiltrators are actually Romulans, but will think they are a part of a radical Vulcan group, and that T'pol's father may have been part of this group years ago when he died, or did he actually die? (Or is he living elsewhere?).

The Romulans are also angry at humans for attempting to create a coalition (federation). Their anger will finally boil over when the Romulans learn that humans have begun building Starbases, one of which is in what Romulan’s consider to be their space.

At one point, the Enterprise will lead a fleet of aging Starfleet ships (since the new ships are not ready yet), to confront the more advanced Romulans ships, and must find clever ways to defeat them (some atomic weapons may be used as surprise to the Romulans). Starfleet will learn that the Romulans like to play dirty and may make suicide runs, and also will set off antimatter explosions to destroy their own damaged ships in hopes of taking the enemy with them. So can Archer and Starfleet find a way to alleviate this threat?

Cloaking Device

The Romulan cloaking device seen in 'Minefield' will effectively be neutralized. The 22nd century cloaking device is nothing more than a bending holo-image as seen in 'United', it is not the complete cloaking device as seen in TOS and beyond. Archer in the second episode figures out a way to use what they learned about holo-image in 'United' to see through Romulans cloaks. I guess the Romulans will have to re-think there cloak and maybe in 100 years they will have one that will work (see Balance of Terror, TOS season 1).