Read from ign:
Asked if Resident Evil Veronica will stick to the source material while implementing bold changes like the Resident Evil 2 remake, Hirabayashi said "yes," broadly-speaking. However, rest assured that this doesn't mean change for the sake of change. "What's most important for the dev team at Capcom is putting the players' memories first, and then rebuilding the game on top of that," said Hirabayashi. This echoes Requiem producer Kumazawa's recent comments that future Resident Evil games will "preserve the core elements of the series," and stay true to established characters and settings, while experimenting with different ideas.
While Resident Evil 4 catches up with what happens to Leon S. Kennedy after the ending of Resident Evil 2, Veronica covers Claire Redfield's continuing efforts to locate her brother Chris. "We chose to remake Code: Veronica next after Resident Evil 4 because we want players to experience Claire's equally important (post RE2) story."
With regard to the Code: Veronica remake, Hirabayashi went on to reassure fans that the devs are aware of the strong fan-following the original has, saying: "The dev team understands that the original Code: Veronica is on par with the numbered titles." Hirabayashi also confirmed that the team working on the Code: Veronica remake is the same that made the Resident Evil 2 and 4 remakes (Resident Evil 3 Remake and Requiem were made by different teams).
Apparently work on Resident Evil Veronica kicked off as soon as Capcom finished the RE4 remake. Like the original, Resident Evil Veronica will be a third-person survival horror, centered on Claire trying to survive Rockfort Island's T-virus outbreak, so resource management will be key.
To shape Resident Evil Veronica, Hirabayashi explained that the team is combining their respect for the original Code: Veronica with player feedback. However, this is not just recent player comments but player feedback from the entire series up to Requiem. Hirabayashi added that the team has even been digging up comments stretching back to when Code: Veronica originally released in 2000 to get a feel for "what gamers enjoyed about it back then."
Resident Evil Code: Veronica debuted on the Dreamcast in 2000, with an updated version Code: Veronica X making its way to the PS2 the following year. Hirabayashi noted that while you don't need to play the original Code: Veronica to enjoy the remake, "I think you will enjoy it even more if you are familiar with the stories of other games in the Resident Evil series. So I highly recommend playing any past titles that you haven't played yet."