If you upgrade to v11.4, the Sharepoint template will present the option to upgrade your iApp. This iApp upgrade is separate from your TMOS upgrade. You can choose to operate with the template as it was in v11.2, or you can choose to convert to the new v11.4 format. The v11.4 template is additive, i.e. it adds features but takes none away. The iApp upgrade procedure will bring forward all of your iApp settings, and assumes conservative defaults for parameters that were not in the previous template. The only known bug in this process concerns ASM. If you used the ASM features of the v11.2 Sharepoint template, and you perform a TMOS upgrade to v11.4, then the ASM features will not be available in the legacy template view (i.e. the v11.2 look-alike view of the v11.4 template). You must proceed with the iApp upgrade in order to recover the ASM template feature, which is fully functional in the v11.4 template view.
Nimbostratus