It might also be nice to tie certain kinds of runes to certain kinds of provinces.
We now have 14 AW's. With yet another guestrace coming up, so yet another 2 AW's to be expected.
The developers/moderators insist that the chance on any rune is equal, i.e. if you have researched 8 wonders, the chance is 1/8 to get a shard of a specific wonder.
My games (in three different countries) do not show that to be correct. I've had times that I had only access to 6 wonders, of which I had 4 in my city. The other 2 I had no runes at all for. In 19 encounters did not get a single rune of the wonders I had not put up yet. (with a chance of 1/3 on getting one).
But whether the process is flawed or not, the chances on getting the rune of any specific wonder are extremely low. If the runes are tied to a certain province one would in each priovince at least have a chance of 1/2 (or later 1/3) of getting a specific rune. or better yet, let the player choose from the runes available in the province after completing it. Then one can at least build the wonders one wants or needs