They are changing to Conax Using so called "tunneling". This is same way that allows U to have Viaccess,Irdeto,Seca a.s.o in a Conaxcam but the other way around. Check this log from one of the new cards:
CA 88 00 00 46 > 88 EA 44 70 42 43 20 27 A1 E8 49 6A 73 0B F1
CD 87 D9 BD A8 5A 98 7A 81 50 73 FA 60 AB 56 CA B8 55 4F C4
DB 49 FD 0A 85 2B 3E 6A 26 56 50 7F 1A F6 42 81 20 7C D1 CA
30 5B 7B CF ED BB 62 98 85 40 35 A3 AC 91 10 5F 90 00

> CA 88 00 00 46 <-Viaccess compute control word instruction and total packet LEN< 88 <- card ACK's the 88 instruction-----------------------------------------> EA 44 <-viaccess Odd and even control word cryptograms (ECW/OCW) nano and LENFrom this point on the data is in conax format> 70 42 <-Conax nano 70 = method to decrypt follows, plus length of remaining packet> 43 <- method to decrypt it> {20} <-key_in_useRsa encrypted ECM data, always minimum 0x40 bytes> 27 A1 E8 49 6A 73 0B F1 CD 87 D9 BD A8 5A 98 7A> 81 50 73 FA 60 AB 56 CA B8 55 4F C4 DB 49 FD 0A> 85 2B 3E 6A 26 56 50 7F 1A F6 42 81 20 7C D1 CA> 30 5B 7B CF ED BB 62 98 85 40 35 A3 AC 91 10 5F