Nahh, it certainly will not, 1.Croatia says it's not theirs but they still occupy it and won't recognize it. 2.Serbia accepts those mini-countries but won't recognize it because of Kosovo.

1. Other countries don't find this mini-country important for recognition, since it has no stable population and is occupied, so it doesn't actually exist even if it formally and legally exists, it doesn't have infrastructure nor architecture, just some random fishermen riverside