I don't know about you, but I watched the movie. The Oracle never said Trinity would die, she just said that the choice was Neo's to make and it had already been made. She may have led them to believe that the matrix would be destroyed by finding The Source, but she never flat out said that. I fully believe she's on the side of the rebels, and that Neo HAD to find the Architect in order to understand why he must stand out above the other "ones" like himself. Just like how she flat out told Neo he wasn't the One in the first film, she uses deception to further the cause. She lied to Neo once, and everything turned out fine, she falsely implied something this time, and everything was ok. I think she'll throw him off track again, and it will lead to their salvation.