Is 802.1Qav dead in the NIC scope?

Hello,

I'm giving support to videoconferences and streamings (RTMP, SRT, WebRTC etc).

Our hardware is based on 82576eb and i350 NICs.

Looks like the older i210 is the only intel network chipset to feature AVB (802.1Qav).

Do you know of other reliable network chipset supporting AVB?

Will buying some i210 NICs make any sense or do you think I'll be wasting money?

Thank you for any opinion.