I agree donsprintr.
It's like having no Legend rg's before the new tiers were formed (bit of repetition there probably).
Derekort said "With the TLs who played tiered RGs now champions for the most part, it will take even longer. Most Tls and Champions play the open RGs"
While I agree with the first part of the opening sentence and the last sentence is true by neccesity, i don't think they would take longer to fill, quite the reverse.
The reason others didn't play the rg's was precisely because these people (slowly) filled them. The TL tier included a variety of skills but the TL tournaments were dominated by the very best players, asking for high stake rg's. It was better playing the low stake open rg's that filled quickly and also the best ignored them or at least could only play once a day.
Now most of the very best players are in the Champion tier and many have come in to TL from legend (and playing tiered rg's), I reckon that lower stake ones would fill well.