Here is documentation about the split and what potential impacts it could have: https://help.salesforce.com/apex/HTViewSolution?urlname=How-to-prepare-for-a-Split&language=en_US&elq_mid=6785&elq_cid=4308924

The integration between Luminate Online and Luminate CRM does not use a particular instance name, so it will not be affected by the change.