Radical case scenario for Bibbi:
Polls tend to discount the Likud by ~5 seats, so that puts him at 35 (same as they got in the last elections). Zalika, B&W/Gantz, Raam, Meretz, & Labor may all not pass but wast 15% of the vote (4 out of 5 almost definitely won't pass), which gives the Likud a 20% boost to 42. Shas and Gimmel retain their 16 + 20% for 19, giving the Likud + Charedim a government of 61.
A less extreme outcome is for Labor to get in, bringing the Likud down to 39 and Charedim to 17, but Smotrich gets 5 which gives them 61.
A very likely outcome is for Labor to get in, the Likud to still be only 30-35, Charedim 15, and then if Smotrich gets in they can form a government with Bennet or Saar, and if Smotrich doesn't get in they need Saar.
Radical worst case scenario for Bibbi:
B&W, Meretz, Labor, and Raam get in, Lapid gets 18, Bennet 10, Saar 13, Liberman 7, creating a bloc of 61 anti-Bibbi seats even without the Arab parties, however, it all hinges on them all convalescing behind a single leader and somehow forming a government when the only thing they have in common is a desire too unseat Bibbi. Ego is very likely to impede that, especially if Saar and Lapid are closer together and there isn't a clear leader.