I really doubt it; they may lost users in long term but not because of new player - they have seem to reached already over-complexity stage with features and th

I really doubt it; they may lost users in long term but not because of new player - they have seem to reached already over-complexity stage with features and thus service will simply become unappealing to existing and new users but that will take time. If they start changing messenger into more discord-slax alike service then they may keep users as this form of communication seems to be getting more popular