-Konami had to have already observed the major success of Bloodstained's Kickstarter. They have a precise $ amount in mind of how popular the franchise can be.
-MGS and Silent Hill are toast. Bomberman did ok on Switch. That leaves Castlevania out there for the next franchise to attempt to put to market.
-Successful Netflix series + Mobile game already in works + success of NES/SNES classic = groundwork to re-establish the franchise
-New Smash Bros. offers additional marketing angle - if you can get Simon Belmont in there
I figure Konami will announce a 2D Castlevania collection not unlike Mega Man Legacy. Then follow up with a new HD 2D Castlevania because it's not hard to find a developer who can make a good Castlevania.
I predict NX launches in 2017 - not 2016