Please advise: what does the set symbol for Kaladesh Remastered (KLR) represent?
According to fandom, the expansion symbol is a:
Far Eastern inspired floral motif, representing the aether of the plane.
The Kaladesh Remastered set symbol is an aesthetic merger of the Kaladesh and Aether Revolt set symbols. It is primarily based on the Kaladesh symbol, with some added motifs from the Aether Revolt symbol at the top (at the “spout”) and bottom (pointy!).
I've arranged them here in a line with Kaladesh Remastered in the middle:
Left: Kaladesh, middle: Kaladesh Remastered, right: Aether Revolt. Source: Keyrune
This is similar to how Amonkhet Remastered's set symbol merged those of AKH and HOU, by superimposing the latter over the former.
To the extent it depicts anything, let's go through the component symbols.
- The Kaladesh set symbol depicts a portion of the Consulate symbol, prominently featured in Authority of the Consuls and Greenwheel Liberator. Their symbol represents an aether reservoir holding aether, seen in Aetherflux Reservoir.
- The Aether Revolt symbol apparently depicts leaking aether? Presumably it's got something to do with the Renegade symbol, prominently featured in Call for Unity, which depicts an aether reservoir shattered and leaking. It's a pretty plain statement of their mission: overturn the Consulate, which extracts, regulates, and distributes aether, and return it to the people.
So between these, it mostly depicts the reservoir still, but it's spilling over at the top? Maybe it's a spilling or leaking aether reservoir. But I'm not certain it is, in fact, made to depict something, so much as it's meant to just unite the two set symbols.