It feels like this should be posted here; so I'll make it quick -
Dark Horse is releasing a (larger) Hardback Deluxe version of the original Planetes Omnibus, of which the first book may be available by end of July 2025 (pre-order currently available through some stores).
« a 7" x 10" hardcover on high-quality paper and includes 44 full-color art pages on special gloss stock. This edition takes inspiration from the International Space Station to pay tribute to the real astronauts that inspire the hard science-fiction genre, with the front and back covers also featuring debossed patterns that provide a tactile effect. The Planetes Deluxe Edition Book One features metallic gilding on the page edges »
I'd assume it will be two Omnibus volumes, similar to the original Omnibus from 2015/2016.
The 7" x 10" size of the Deluxe is up from original 5.75" x 8.25" omnibus. (The original is a standard/common TPB size that fits well next to others from Viz; whereas the (new) Deluxe release should match Vertical's Master Edition releases of "Blame" and "Knights of Sidonia".) (big!)
The announcement of 528 pages for Deluxe Book One looks to match the original omnibus; including the 44 color (glossy) page count, which in the original are a 4 page intro (includes table of contents) and then 4 pages at the beginning of each Phase (except for Phase 9, which is the second of the 2-parter 8+9). The original volume 2 omnibus has 48 color pages (skipping Phases 21-24), so I'd expect similar for Deluxe Book 2.
Currently one site has the combined cost of the two original softcover omnibus at the price of pre-ordering just volume 1 of the Hardback Deluxe Edition; though if having a larger format and reading/owning a hardback seems appealing then do keep an eye out for it or reviews this July/August!
For more info on some older merchandise, see the merchandise post here from 2008 or links to it in the side bar.