Multiple RDS deployments same forest

The setup has:
-2x 2012R2 server with the session host role configured
-1x 2012R2 server with the gateway, webaccess and connection broker installed
-1x domain controller
-1x application server running a SQL database

A application is published on the RD Web Access server, the users are only using the remote app to connect. 
-The web access URL: tenant.fabrikam.com
-The gateway URL: tenant.fabrikam.com

The plan is to setup a multitenant environment, the others customers need to access a different domain/URL, for example:  tenant.contoso.com

An option would be to add a second RD Web access website to the existing RD Web Access server, however the preferred way is to add a second RD Web Access server. But the problem is the RD Gateway is also installed on the same server and has the wildcard certificate.

For the reason above i think the best option is to deploy a new RDS infrastructure (Gateway, Web Access, Connection Broker and Session hosts) that uses the same AD domain and is able to use the same application server. 

Is it possible to deploy multiple remote desktop services in the same forest?