Hi M Z,
The Ruckus R510 is the successor to the ZF7372 access point. https://www.ruckuswireless.com/products/access-points/ruckus-indoor/ruckus-r510
The R510 is a similar specification device (2x2:2). However it will provide increased performance (depending on clients) as it is uses the newer 802.11ac W2 Wi-Fi standard and benefits from being approximately 4 years newer.
One consideration you need to make, is if you are using a Ruckus WLAN controller (most likely a ZoneDirector), you will need to ensure that the software version is able to work with both the existing ZF7372 and the new R510 APs. The earliest ZoneDirector version to support R510 is 9.13. This release also supports ZF7372.
I hope that helps!