SAP Gateway for S4

Hi Experts,

Our current system now already have SAP Gateway linked to ECC and CRM system.

Now we are considering moving our ECC to S4 system.

My question is, is it possible to use the same SAP Gateway that we have now and linked it to the new S4 system by creating new system alias to S4 so in the end, our SAP Gateway will be connected to our SAP CRM and SAP S4 system?

Thank you.

Regards,

Abraham