Not a chance he plays 30 games for England

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He's already 25yrs old and has never played for England at any level
Goalkeepers who have made their England debut at 25 or older in the last 30yrs are below. Brackets show how many caps they made:
- Sam Johnstone, 28 (4)
- Alex McCarthy, 28 (1)
- Nick Pope, 26 (10)
- Tom Heaton, 30 (3)
- Fraser Forser, 25 (6)
- John Ruddy, 25 (1)
- Chris Kirkland, 25 (1)
- Rob Green, 25 (12)
- David James, 26 (53)
David James is the outlier in the list in that all the others never reached 15 caps, and only 2 others made double figures.
Only 10 goalkeepers have played 30+ games for England. Their debut age is in brackets:
- Jordan Pickford (23)
- Joe Hart (21)
- Paul Robinson (23)
- David James (26)
- David Seaman (25)
- Chris Woods (25)
- Ray Clemence (24)
- Peter Shilton (21)
- Gordon Banks (25)
- Ron Springett (24)
Over the last 15 years, we've seen some goalkeepers make their debuts for England who were tipped to become #1 and it never materialised.
- Aaron Ramsdale, debut at 23. (5 caps)
- Dean Henderson, debut at 23. (2 caps)
- Jack Butland, debut at 19. (9 caps)
- Scott Carson, debut at 22. (4 caps)
As good as Cooper is, I'll be surprised if he makes a single appearance for England. He definitely won't make double figures