No.
They'll come out with some vague waffly notion about hands, face, space, air, don't drive your car and advise people to maybe consider if they could not leave their town unless X, Y and Z. No hard and fast "rules" or tough consequences for breaking them.
And people will break them. Because "the Government will!!", "we can for THIS reason", "they can in Z random country", "it's just to protect London", "they're all feckless idiots", "we need to see Ain't Glenda", etc. Most of the reasons given will be nonsense.
The cases will soar again and they'll say "well we did say probably don't do it" and we'll be back in lockdown by January