You have been doxxed.
I think the most likely outcome is
- Israel marches in, wins the battle, and arrests all undesirables
- many palestinians leave and aren't allowed back
- HAMAS has to elect new leaders, maybe some clan wars
- in a few years, return to "normalcy" and frozen conflict
Maybe some other political organization replaces HAMAS, but they would still be HAMAS. They will still be revanchist, anti-Israel, and have a military arm. That's just what the political space is like.
What other kind of party do you expect to come into existence in a big concentration camp?