Well, Slavic disunity has been a common thing probably since Slavs first started to exist (despite the occasional Pan-Slavic trends). It’s a very interesting relation with the Thracians, btw – particularly numerous and quite divided between each other.
Though I agree that we’ll eventually lose our Slavic identity. Same goes for the Germanic, Romance, etc, etc people, IMO. Though I really doubt any major changes would happen in the next 10 years. Unless WW3 erupts and we all die, of course.