The server workaround will work, it will get better in the following days. The save file will be more of a challenge, but I expect it will be solved very soon.
Ubi have said themselves that they could release a patch to remove it if for any reason they needed too (possible scenario is they want to switch all the servers off). To think someone else wont figure out and release this patch is simply IMO daft.
Looking forward to buying it tonight though and playing it on the 106" projector
its what my new gaming PC has been waiting for!