cecil: Ok then what exactly will it be? You can't prove me wrong... yet ;) Shadowrun? Tri? is Shovel Knight going to be like Torchlight II where it will take 4 years to be bundled?
Hard to say, normally the 2nd week games aren't high profile like those on the first week, they could put one or two repeats (from previous weekly bundles) and something new, since Shovel Knight is a high profile game (inside the indie scene) if it was to appear on this bundle it would be on the first week and not the second.
As for when it's going to show up on a bundle, who knows, if we check the current state of indie bundles you get lke 80~90% shovelware and greenlight titles (if not more) and to be honest, let's check this indie bundle:
Pixel Piracy
Historical Lowest Price: 0,99€ at Humble Store on Thu Dec 18 2014
Number of times this game has been in a bundle: 3
UnEpic
Historical Lowest Price: 2,24€ at Steam on Sun Jun 22 2014
Number of times this game has been in a bundle: 3
Super Splatters
Historical Lowest Price: 1,82€ at Humble Store on Tue Jan 14 2014
Number of times this game has been in a bundle: 1 (HIB 14)
La mulana
Historical Lowest Price: 1,39€ at Steam on Sun Dec 22 2013
Number of times this game has been in a bundle: 2
They have been dirty cheap or on another bundle previously, the exceptions Torchlight and Outlast (i swear that i remember seing Outlast on a previous weekly bundle but apparently not).
Perhaps it's my imagination but i get this feeling that indie developers got burn with indie bundles (people stopped buying their games waiting for a bundle) so they prefer to wait a lllloooooonnnnnggggggg time or put them on the weekly bundles (less games and with higher tiers).
Can't blame them, i'm not buying (unless i REALLY want it day one) any indie games on ps4 because Sony is teaching their users not to buy them thanks to their ps+ offerings... Hell, i'll probably won't even buy them on the pc because they'll end up ported to ps4 and released someday on ps+...
Licurg: Need someone from the US to buy me the C&C pack from Origin while it's on sale for 9.99$ :
https://www.origin.com/en-us/store/buy/c-c-the-ultimate-collection/pc-download/bundle/standard-edition I'll buy you something of the same value from GOG .
Unless you really want it now i would say that you should wait for an amazon sale, usually it goes for 5$.