If the iPad is showing that it is disabled and connect to iTunes, that is the only option at this point, and yes, it will be erased.
If you had iCloud backup turn on (it is by default) then there will be a backup that can be restored from. In addition, if iCloud photos is on (again on by default) then all the pictures and videos are saved to iCloud, unless your iCloud storage is full then there could be some loss.
There is no way around having to erase the iPad, this is one of the many security features in Apple products. In this case, this is an intrusion detection feature that disables the device after 10 unsuccessful attempts to unlock the iPad.