Sure, it is possible. You can use the parameter -Djboss.socket.binding.port-offset=100, then it will increase the port numbers by 100.
However I recommend to use different IP address to each wildfly instance, as there are management ports as well the unsecure and private ports that may conflict with a running wildfly instance.
A example command to launch with ip address
./standalone.sh -b 10.10.10.10 -bmanagement 10.10.10.10 -Djboss.bind.address.unsecure=10.10.10.10 -Djboss.bind.address.private=10.10.10.10
run wildfly in domain mode