Some games that are currently stuck on older consoles that I hope get rereleased in some way, Part 9:
Part 1, 2, 3, 4, 5, 6, 7, 8
Blazing Souls Accelate
PokePark series
SOS/Septentrion
Zone of the Enders
Zone of the Enders: The Fist of Mars
Orphen: Scion of Sorcery
Mega Man Star Force series
Older Madou Monogatari titles
Bishōjo Senshi Sailor Moon: Another Story
Chakan: The Forever Man
Gunstar Heroes and Gunstar Super Heroes
Magic Knight Rayearth(Saturn)
Older Megaten games
Star Trek: Elite Force series
The Angelique otome series
Culdcept
Dragon Force
Martian Successor Nadesico: The Blank of Three Years
E.V.O: Search for Eden
46 Okunen Monogatari: The Shinkaron/E.V.O. - The Theory of Evolution
Tokyo Jungle
Soul Sacrifice
Mercenaries series
Eternal Darkness: Sanity's Requiem
The Path(this is a more unique case: it's available, but is having trouble keeping up with new Windows updates to work properly, unfortunately).
Tak and the Power of Juju series.
Fist of the North Star: The Twin Blue Stars of Judgment
deSPIRIA
Magi-Nation