In the meantime you can vote on sessions. The tally will serve as a guideline for the session selection committee, who will assemble the session schedule for Drupalcamp. The voting ends also on May 31st.
The speakers will be notified and the schedule is posted on June 1st.
In few days all participants to Drupalcamp Timisoara will be able to vote/favorite sessions they like. Session proposals will close few days before the conference. We will announce this date in the near future.