False. Not only for the released Jap version, but it has never at any point during development been intended for Aeris to return.
Proof:
(1) - Fact: Having Aeris in your party after her death has a high probability of crashing the game, because there are no scripts/behaviours for her presence in the final release of FF7.
(2) - Fact: You could easily prevent Aeris from ever rejoining the party again by removing the single line of source code Party.AddCharacter(AERIS);.
(3) - Fact: Programmers are inherently lazy.
(4) - Premise: Let's assume that at some point during the development of FF7 you could bring Aeris back, and coding and scripting was performed to accomodate her presence in the party.
| (5) - If (1) and (4), then all scripting for Aeris has been painstakingly removed from FF7 since then.
| (6) - Contradiction: (2), (3), (5).
(7) - Thus premise (4) is false; there has never been a way to return Aeris.
This also works to disprove any Aeris revival in the Japanese release, since the US release is based on FF7jap and we know (1) to be true for FF7us. And FF7 International is basically FF7us but in Japanese (using most of FF7jap's scripts but some of the new code from FF7us, like the Underwater materia), so the same applies for it.