gunboats would technically be best for this situation since they dont have the chance to get nullified by the Deviant Automata Supressor.
i dont remember much from the presentation but from what i see it will be something close to WH Space in terms of fitting, i mean, omnitanked, probably something heavy on reps/resists.
the fact that the sites are timed make it hard to decide, but im pretty sure that all the permitted cruisers will be capable of running the session but not without a clear weakness that players have to get around.
gunboats would be the least affected compared to missile/droneboats so i would go mostly for those. Maller and Moa would be the best tanking the Triglavs since they would be able to also mitigate the resistance penaltis to a degree. Thorax and Omen wouldnt be as tanky but they would be good allrounders despite being attack cruisers (and thus less tanky), Vexor would have issues due to the drone penalties but it can still tank fairly well and use hibrids to deal damage while waiting to get the drones out, Rupture and Stabber would be the fastest to traverse the pocket in case the distances are really a problem.
Caracal is the only one that i may see in trouble because not only is mainly a missile boat but also because of the small dronebay, it will probably be the most handicapped for Abyssal space due to this (low tank compared to the Moa, Missile focused and thus nullified by the DAS, no way to compensate with other weaponry due to no turret hardpoints or good dronebay).
basically, Guns > Missiles/Drones for this situation. Tank vs Speed is lke a 50/50, its a matter of taste. and this also extends to Faction/T2. Navy will be best at this than Pirate due to the bonuses (Pirate ship gimmicks dont make much sense for PvE but if you like the better raw stats well, go ahead) but Sansha and Serpentis should be good at this (perhaps Angels too), Blood Raiders are cool but more PvP oriented while Guristas, Mordus and SoE will probably get shitted on by the mechanics of the sites.
as for T2, HACs come to mind, they are pretty popular anyways and if you get ganked i guess you can always try and see if the ADC will help you to fight back.