Nord 4 or wait?

Hey I'm getting a nord 4 for about 290usd though it's two months used but the condition is perfect. I'm confused if I should wait for nord 5 especially since some rumors say it'll have a 7000mah battery with Dimensity 9305, or should I just go ahead and buy this one?

The main features which are convincing me for nord 4 are the metal body which I absolutely loved back in oneplus 3t, and the battery life.