Nobody that we know of is developing ASICs. We specifically chose PoRep algorithms to be good with commodity hardware, not ASICs.

The only ASIC we have considered to develop in the future is a VDF ASIC, with Ethereum 2.

Note that PoRep and consensus algorithms will likely change and evolve after Mainnet, so ASICs would probably not work anymore and be wasted -- we target commodity hardware -- Juan