do you think we'll go in lockdown again

UK-wise, it's very likely we will. The government has a habit of relaxing rules too early against their own scientists' advice then being forced to u-turn, even basic stuff like masks which pretty much everyone was used to and was effective. Now people wont pay much attention to the mask mandate a second time, as they did with the second lockdown.

Maybe, Its all a matter of Vaccines

The truth is, we never really locked down in the first place, at least compared to what the Chinese did. So no way, no more lockdowns.