Here is a solid write up to catch you up as of now.
These were the 1st 10 titles announced.. of 40! Yup... double the other minis.
Sega then held a YouTube livestream announcing games 11-20. We now have 20 of the 40 titles and they're looking good IMO.
Thus far, 20 games have been announced for the western version. They are:
Ecco the Dolphin
Castlevania: Bloodlines
Space Harrier II
Shining Force
Robotnik’s Mean Bean Machine
ToeJam & Earl
Comix Zone
Sonic the Hedgehog
Altered Beast
Gunstar Heroes
Castle of Illusion Starring Mickey Mouse
World of Illusion Starring Mickey Mouse and Donald Duck
Thunder Force III
Super Fantasy Zone
Shinobi III
Streets of Rage 2
Earthworm Jim
Sonic the Hedgehog 2
Contra: Hard Corps
Landstalker
UPDATE: 5/16/2019 - Titles 21-30 Announced:
Mega Man: The Wily Wars
Street Fighter II': Special Champion Edition
Ghouls 'n Ghosts
Alex Kidd in the Enchanted Castle
Beyond Oasis
Golden Axe
Phantasy Star IV: The End of the Millennium
Sonic the Hedgehog Spinball
Vectorman
Wonder Boy in Monster World
UPDATE: 6/4/2019 - Titles 31-42 Announced:
Tetris (ridiculously rare version!)
Darius (brand new port!)
Virtua Fighter 2
Alisia Dragoon
Monster World IV
Kid Chameleon
Road Rash II
Eternal Champions
Columns
Dynamite Headdy
Strider
Light Crusader
My answers/thoughts to these were pre-5/16 update.
What do you think of the list so far?
What else do you expect to see?
What are your longer-shot hopefuls?
Is your confidence is Sega too low at this point to pre-order & are you looking forward to this?