Here is a screen of the current Klingon Mission Journal on Tribble, obvious all is subject to change, and the mission images are placeholders, and none of the new missions are available for testing, except for one.
Empire Tab is what you see here,
"Warzone" consists of "Bringing Down the House" and "The House Always Wins", a new mission called "Test Your Mettle" which you get after acquiring your Lt. Cmdr ship, part of the House of Torg story arc, which you can test right now. After that its "Second Star to the Right" and "Keep your Enemies Closer"
"The Fek'lhri Return" is obvious.
"Vigilance" Consists of two new missions "A House Perused" and "House on Fire", plus the mission "Alpha" and "Temporal Ambassador"
"Wasteland" is the new Nimbus V adventure zone, 6 missions.
"Romulan Mystery" is the Romulan FE series
"Spectres" is the Dividians
"Dominion Domination" Consists of 8 previously Fed only Cardassian/True Way missions, plus the Dominion FE series.
"The Collective" are the End Game Borg Missions.
"Breen Invasion" is the Breen FE
"Undine Advance" are the end game Undine missions.