SPOILER ALERT
I don't see how Maria could be the Locust Queen since a) the Queen was alive in Gears 1, during which Maria is still alive, meaning they exist at the same time and are thus two separate beings and b) Dom domes Maria to put her out of her misery in the course of Gears 2, before we meet the Locust Queen in person.
Also, if I recall correctly, you can hear Maria speak in a dream cutscene that Dom is having in Gears 2. Compare her voice with that of the Queen in Gears 1 and 2 and the difference is quite considerable.
Who the Queen is -- as well as her involvement in the creation of the Locust and with Adam Fenix -- remains a mystery. However, I don't think the OP's theory is the one to explain it.
I don't see how Maria could be the Locust Queen since a) the Queen was alive in Gears 1, during which Maria is still alive, meaning they exist at the same time and are thus two separate beings and b) Dom domes Maria to put her out of her misery in the course of Gears 2, before we meet the Locust Queen in person.
Also, if I recall correctly, you can hear Maria speak in a dream cutscene that Dom is having in Gears 2. Compare her voice with that of the Queen in Gears 1 and 2 and the difference is quite considerable.
Who the Queen is -- as well as her involvement in the creation of the Locust and with Adam Fenix -- remains a mystery. However, I don't think the OP's theory is the one to explain it.