Dear Milan Straka,
We will allow for 2 submissions per team on the test data. More details on how to submit should follow very soon in this google groups (I aim for later today Copenhagen-time.)
The test data will be released after we have smoothened out all the issues with the submissions. This will probably be on time for you to use the data, as we will use codalab I do not expect too many issues.
However, I would be against doing (too many) ablation experiments on the test data, this is what dev should be used for (I can't stop you though ;) ).
Best,
Rob