I've been playing with this idea for a couple of days now. It may seem a bit random, but I definitely think they should do it. I'll try to explain as briefly as possible why I think so.
First of all, and I don't know how many people are aware of this, but CV3 has a few continuity between it and details later established by IGA. For example, according to CV3, Dracula is actually Vlad Tepes who made a pact with an evil deity, which turned him into a vampire. Alucard was Vlad's human son who also got turned into a vampire as a result of the pact. Also, Dracula's motivation for being evil is stated to be greed. Nothing is mentioned about a dead wife. As far as I know, no real attempt has been to retcon any of this.
Secondly, CV2, despite being the third game in the series, was supposed to be the finale of the storyline already. According to the Japanese manual story, the method of burning Dracula's body parts would mean his permanent destruction. This is further supported by the Japanese ending which appears in the best ending, which says:
“
And the battle ended. Simmon Belmont put an eternal period to the legend of Dracula. His blood and sweat penetrared into the ground of Transylvania will bring us full-blown flowers with happiness next spring.”
So, once again, we have a situation where the original intent was ignored, in this case by Rondo of Blood, but with no retcon offered.
Thirdly, there is a possibility Trevor and Christopher being the same person. As mentioned in the Akumajo Densetsu interview thread, Trevor's middle initial stands for Christopher according to someone who worked on the game. This would mean CV1, 2, and 3 could form a tight storyline on their own, with a clear beginning and an ending that wraps everything up.
The final reason for doing it could be to preserve the original character designs. IGA has a bit of a tendency to overwrite old character designs. Case in point, Simon and Richter's redesigns for the respective remakes of their games. Personally, I understand his reasoning for doing so, it makes the universe he created more consistent, but on the other hand, I think it's a bit of a shame that the old designs get thrown out of the window. Although I really like the designs from Symphony and onwards, I do have a soft spot for some of the old artwork, especially the manual illustrations for CV1 and 2. I think it would be kind off neat to have a blond Simon and a Bela Lugosi-like Dracula again.
I imagine they coul do it like this: let CV1, 2 and 3 form their own mini continuity. They could call it the "Akumajo Dracula" timeline. IGA's timeline could be called the "Akumajo Dracula X" timeline. As a result of this, there would be a few gaps in IGA's timeline. However, they could perhaps fill these up with new games that reimagine the stories, but without the contradictory details, just like what they did with The Adventure Rebirth. In case of CV1, I would propose to replace it with the Arrange version of Castlevania Chronicles.
Akumajo Dracula timeline:
CV3-->CV1->CV2
Akumajo Dracula X (IGA's) timeline:
Exactly the same, but without the above mentioned games, which are replaced.
If they would do this, how would you feel about it?