If the situation is as described, the death of the Hezbollah spokesperson from an Israeli strike could significantly increase tensions between these two groups.
Hezbollah’s preparation for a response to a fresh ceasefire proposal means they are considering a new round of peace talks, despite the ongoing conflict. The death of their spokesperson could either harden their stance and increase their demands, or it might push them towards a ceasefire to prevent further losses.
However, it’s essential to keep in mind that these are hypothetical scenarios. The actual outcomes might differ based on a range of factors, including the specific dynamics and internal politics of each group, as well as international pressure.