Wow great news. I also had an update from SEAT. My car is being built this week (29th Feb) and will be at my dealer by at least the first week in April. Although remember, I'm a 1.0TSI DSG so you've not done too bad really!
Good news then - part of me still wishes I had the DSG in the 1.4. My father has the same engine in the Leon FR and he has DSG which is great with the torquey engine. Seems strange you can't spec the 1.4 in the Ibiza with the DSG.