That's the most likely option because the anime will adapt the events of the Clash of the Titans arc and The Uprising arc, and this is the end of the latter.
I think its likely they will adapt the Clash of Titans Arc and Uprising Arc for the majority of Season 2 but I do kinda wonder if they might adapt the Return to Shingashina Arc at least, at the beggining with the Keith Shadis past with Grisha as well as the Survey Corps venturing to reclaim Wall Maria and the last part with Bertolt and Reiner looking out at the Sunset, now that would be a good cliffhanger for the ages, as fans would want to see what happens next and furiously demand a third season. That would be the plan to get fans interested.
@Tdfern14: The first season ended in a cliffhanger too, with the Titan in the Wall and the 104th Trainees riding towards Castle Utgard; so I do think they will repeat the same formula and the second season will end in a cliffhanger with a preview of the Return to Shiganshina; probably at least with the scene of the Beast Titan defeating Reiner.
I don't know, i think in my opinion, that a good cliffhanger and good preview would be the Reiner and Bertolt watching the Sunset as the Survey Corps try to head to Shingashina, plus I think at least in Season 2 in the end they should incorporate the Keith Shadis flashback with Grisha so that be outta the way.