A nice summary of the hardware line that will supplant the CX4.
EMC follows NetApp’s lead with VNX line • The Register
The VNX products are the migration path for current CLARiiON and Celerra products, which will continue to be sold and supported. The VNX7500 is the migration product for Celerra NS960 and CLARiiON CX4-960 requirements. The 5700 and 5500 take over from the NS-480 Celerra systems and CX4-480 and 240 arrays. The 5300 and 52100 will eventually replace the NS-120 and CLARiiON CX4-120 and AX4 products. There will be non-disruptive upgrades through the VNX5000 range from the 5100 to the 5700.