Learn English – How to simplify this: “can include, but not limited to”

Another way to say it where it doesn't sound so distantly in the future is to say, "The upgrade will not happen in the immediate future."

(thanks Wesley!)

You can paraphrase the proverb as:

Where there does not lack will, a way opens.

or:

Where there is no lack of will, a way opens.

Both want and not call for a little explanation.

want

The verb want can mean “lack or be short of something desirable or essential”.¹ This is an archaic sense of want, and Tolkien was a language expert and fond of archaisms. You see this sense of want in sentences like

Where obedyence wanteth … there is no goodnes. (The Pilgrimage of Perfection, 1531)
Where Power wanteth Rigor weakneth. (The Illustrated Magazine, 1863, quoting Doctor Dee, 1588)
The Lord is my shepherd; I shall not want. (Psalms 23:1 KJV, 1601)
If you marry me, you will want for nothing.

not

Tolkien’s syntax “will wants not” (N V not) is an example of simple negation. Again, Tolkien is using something rare in modern English, but this syntax was once common. You see this syntax in sentences like

Jesus saith unto her, Touch me not. (John 20:17 KJV)
Waste not, want not. (proverb)
She loves me … she loves me not. (children’s game)

Simple negation is also discussed in a related question.