While I love Torment: Tides of Numenera it is quite obvious the developers either ran out of money or time by the end of it. The later portions of the game just kind of fly by, there are a lot less companions than initially advertised, and the combat system is about as boring as it gets for an isometric RPG.
Thankfully, some of these issues will be getting fixed over the coming months. If you're interested in a detailed overview of things to come you can find the full announcement over at Steam. But long story short, there will be a new companion by the name of Oom (also known as "The Toy"), something called the Voluminous Codex, as well as numerous improvements to the combat system.
Before any of that content arrives, however, there will be a couple of updates entirely dedicated to performance, stability improvements, and bugfixing. The first of these will be coming in the next couple of weeks, though the exact release date hasn't been given just yet. Once Torment is finally as bug free and as stable as possible the developers will move on to adding more content, which includes the stuff mentioned above.
Until then, if you're interested in giving Torment: Tides of Numenera a try you can find my review and thoughts by heading over here. If you're just looking for the short version, however, here it is: "Torment is nowhere near perfect, and the combat is straight up boring, but its story and characters were so compelling to me that I simply couldn't stop once I got invested. If you're a fan of Planescape: Torment or similar RPGs that have sacrificed gameplay for story, odds are you'll enjoy Tides of Numenera as well. On the other hand, if you love Pillars of Eternity and Tyranny because of their combat mechanics and intricate skill combos, then I'm not really sure if Tides of Numenera will offer you the experience you seek. Chances are you already know if you like this sort of RPG, but if you have even an inkling of interest I fully recommend you give Tides of Numenera a spin."