Lords of Shadow 2 just came out really. Going a few months without a new game revealed isn't exactly indication of a long slumber.
My thoughs, exactly.
Let´s see Megaman for example, the original (for the X saga, I am still waiting for Megaman X9). Yes, we have 9 and 10, and those were great games, but aside for his infamous incursion in Street Fighter X Tekken, the only future videogame "starring" Megaman is Super Smash Brothers. Where is my point? Well, after Capcom cancelled Megaman Legends 3, it seems really no interest in his former star. So, Inafune begin with his project Mighty Number 9, which resembles a lot to Megaman. Again, where is my point? Maybe, as stated here in the forums by some doods (including myself) Castlevania will continue that way, with IGA creating a Metroidvania style game with Kickstarter...
But who knows, maybe Konami is working already in a new Castlevania. But yes, this year we have LoS 2, so we will see another CV (even announced) until the next year, I suppose...