We've had news from Sigma UK with further details on the new lenses that were announced at the CP+ Show earlier this year, including pricing information and availability expectations:

We now have price and availability information for three products announced at CP+.

19mm f/2.8 DN
SRP: £189.99
Available in the following mounts: Micro Four Thirds and Sony E mount - Late March

30mm f/2.8 DN
SRP: £189.99
Available in the following mounts: Micro Four Thirds and Sony E mount - Late March

30mm f/1.4 DC HSM
SRP: £499.99
Available in the following mounts: Canon - Late March, Sigma - Early April, Nikon - TBA