It would. Especially if it included the extra content from Legends.
Love the original, but SoA:L is rare enough to make it prohibitively expensive to buy again just for a few extra bits.
Of course, given Sega's current habit of bad Dreamcast ports, it's more likely to end up as a rushed shambles than a decent upgrade, even if it did happen.
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"I'm Commander Shepard, and you're standing in the biggest library in Citadel Space. Look me up."