Have both - love CP like everyone else but get good wear out of Collegium also. Main draw for me was that the profile on Pillars aren't as thin as CP but the toe is still tapered enough compared to Lanvin cap toes which in my opinion is a bit rounded.
Just a good balance aesthetically, it's...
Likely can be found on sale at end of season, scattered sizes probably. This one will sell better throughout the season vs the tans - as you mention due to the lower retail.
Those won't be releasing unfortunately. From what I know, there were some quality issues with that shiny upper. They'll be shipped to retailers in this color for SS16, but a little more of a matted finish.