I know I can change the company name using this command from the CLI:
set web-security "IT Dept" "My Company Name" City State
and if I remember correctly that automatically regenerates the TomCat certificate. What would be the repercussions of regenerating the IPsec cert as well, but not the remaining certificates? I know I'll need to do the remaining certificates at some point, but as those would require a maintenance window so I can reboot phones, would there be any harm in running the system in this manner?