These appear to remain available in Fusion Player (non-Pro): Fusion - Run Windows on Mac | Virtual Machines for Mac | VMware
See the comparison chart for snapshots and the FAQ lower down for simultaneous VMs:
"Can I Run Multiple Virtual Machines On A Mac At The Same Time?
Yes, you can run as many virtual machines concurrently with VMware Fusion 12 Pro and Player as your system’s CPU, RAM and disk storage will support. In fact, VMware Fusion leverages patented memory-sharing techniques to drastically reduce the memory required to run multiple virtual machines at the same time."
Mike, does Workstation Player now allow multiple simultaneous VMs? That's no longer listed as a difference in the comparison charts (see VMware Workstation Player | VMware). Snapshots on Workstation do seem to be still restricted to Pro?