To add on to @Lluis's post, you would also loose projects, Early Watches, CQCs, SDCCN connections, metric information, alerting infrastructure, change mode for tx SMSY.
What you may want to do is leave your current SolMan in place and stop putting work into it, unless something breaks that is critical. Setup a fresh installation and use the old one as a reference point until you can cut over to the 7.1 version.