I think, application aware backups are overrated. A simple pre-snap-script by the tools should be sufficient in most cases.
I am looking forward to see XO6 and hope to see
a real backup task management, where I can see progress bars for the whole process including merge, etc
a better UI with a fully working console, easier migration for VMs (drag&drop), that make me start not to miss XCP-center
ApplicationAware backups are IMHO only important for:
Active Directory -> Microsoft always recommends to use Windows Backup
Database -> consistency could be guaranteed by a small “sync”-script
—> the database backup and restore features of e.g Veeam are looking great from the white papers, but did never help me