Can I use M620 or M710HD blades in my existing chassis fabric?

I have an existing M1000e chassis partially populated with M600s and M610s.

I'm purchasing an additional M1000e chassis and a couple of blades so I have fault redundancy. I would love to be able to use any existing blades and any future blades in either chassis.

From what I've read and understood, it appears I can't use M710HD or M620  due to my existing fabric limitations - is that correct? It appears on the M620, your Fabric A choices are all dual port 10Gb and on the M710, the Fabric A choices are a Broadcom 5709 Quad Port 1GbE NIC

In my existing chassis

Fabric A is GigE with 4 Cisco Catalyst WS-CBS3130G-S swtiches

Fabric B is FC 4GB with 2 Brocade 4424 switches

Fabric C is GigE with 4 Cisco Catalyst WS-CBS3130G-S switches

This allows us redundancy on every link and each vSphere host is presented with 4x1GigE links and then 2x4GigFC links to the SAN

The M600 blades each have 2xGigE links on the embedded LOM, 2x4GigFC on a QME2472 mezzanine card,and 2xGigE on a Broadcom M5708t mezzanine card

The M610 blades each have 2xGigE links on the embedded LOM, 2x8GigFC on a QME2572 mezzanine card,and 2xGigE on a Broadcom M5709t mezzanine card

We're already replacing the Brocade 4424 switches with passthroughs to some MDX 8GB switches - this will allow the M600s to still connect to the SAN (though at 4GB) and the M610s to connect at 8GB.

Other random stuff to consider -

we want to stay with half height blades with no more than 12 total cores due to Oracle licensing requirements.

All blades run vSphere 4.1u2 or 5.0u1