Yeah, it's best to temper expectations with this.
Square already has enough on its plate for home console games. It'll likely be handheld or a disappointment.
They really don't. They have a couple of (announced) massive games with FFXV & Kingdom Hearts III and a few handheld/mobile titles but the dev team of FFXV isn't too huge (somewhere between 200-300 people according to Tabata), KHIII is from SQEX's Osaka offices and most of the portable/mobile titles aren't (fully) internally developed, so that still leaves a lot of people from the main Tokyo offices who aren't tied to FFXV or the on-going support of their MMOs. FFXV will also be released relatively soon and who knows when KHIII will be out, so they quite likely need to have MORE than just those two for the next 2-3 years.
FFXIV's dev team had 600-700+ people working on it at one point, so after its completion I'm sure SQEX could start moving forward with new console projects again. DQXI is probably mostly developed by people behind DQX who they don't need for supporting the MMO.Lightning Returns was also finished this year. I doubt all of the hundreds of people from those games who they don't need for FFXIV's ongoing support and who needed to move on to a new project after they finished LR went to FFXV, so it isn't too unreasonable to assume that Square Enix has had 2-4 console JRPGs of varying sizes (i.e. from Drakengard 3/Nier like mid sized games to FFXV like gargantuan efforts) in the pipeline for around 1,5 years by now (with some planning & early development with small(er) teams even prior to that) with planned releases in 2015-2016.
And that isn't even accounting publishing games from devs like Tri-Ace or collaborations like Dragon Quest Heroes.