i have also heard rumors about this for many years now, as did my grandparents before me and their grandparents before them. I am not saying moshiach is not on the way and hope he is! but the fact is throughout Jewish history after every tragedy these rumors are amplified.
I find it is in particular people who are not happy with their own lives that are obsessed with moshiach coming any day now. I hope they are right. But in terms of dreams, I can’t tell you how many times I’ve heard non-Jews dreaming about JC coming to them and telling them things.
we can only hope, but should one quit their day job and use all their savings to move to eretz yisroel? probably not the best idea. As a great rov once said, you should not want moshiach to come for yourself, since this will limit how much you can live with mesiras nefesh. you should only want him to come as a sacrifice for the sake of the world seeing a kidush Hashem.