Could be, after all this is WB.... but what are their long term plans ? I mean, what after Matt Reeves completes his trilogy in next 4 years ? (though I doubt it as Matt Reeves takes lot more time planning and writing his movies.)
What if after 4 movies, Keaton decides that he's done with Batman (Keaton's already appearing in two movies next year) So, they will be facing a situation where there's no Batman as both Keaton and Batfleck are out.
Which is why I doubt they will kill off Batfleck's version of Batman (they can recast, as I said in my earlier post), but who knows ? WB have taken lot of bad decisions. Maybe they will just Reboot the whole thing.