I was about to say about lion but i see mrNiceguy already mentioned it.
Change with loosing gold after timer runs is nice since being last one who pick is advantage.
But imho this change could be even more extended in future, for example:
-give a bit more gold at start to everybody ( i would say between 10 to 30 gold )
-turn on this "loosing gold timer" at time when pick starts,
-give 10 seconds, right after mode is set (before pick starts), for possibility to select hero in taverns so when this 10 seconds pass , your selected hero is picked without loosing gold (conflicts when more then one person select the same hero could be resolved, like who selected first gets hero, or more extended by adding possibility to select more then one hero in order list, so when somebody selected first hero from your list before you, he will get it , otherwise you get it, in case somebody took your hero this algorithm starts again but for next hero from your list and so on. In worst case , you enter pick phase when you start loosing gold )
I think it would be funny and competitive , because right now everybody wait until everybody else pick to have advantage. It would makes people pay more for having this advantage.
best regards
F.L.