According to the current ceasefire timeline between Israel and Lebanon, the IDF is meant to pull back from southern Lebanon four days after Trump takes office. Of course the IDF pull out is predicated on whether or not the Lebanese Armed Forces (LAF) can properly take over the areas and prevent Hezbollah from regrouping.
With the IDF continuing to find more and more secret stashes of weapons belonging to Hezbollah as well as the LAF’s inability to actually keep Hezbollah out of the south, most observers believe the IDF will in fact stay in the southern part of Lebanon, potentially indefinitely.
This of course will scuttle the ceasefire with Hezbollah. However, with most of the Hezbollah leadership neutralized and the IDF now in control of the Mount Hermon summit, there is little Hezbollah can do.
Hezbollah may be in an extreme weakened state, but the IDF must be assured freedom of action against it to ensure it remains a non-factor from now on.