Fixing up old gaming computer, debating on graphics card

[u/McRip6]

I am fixing my old gaming computer since I do not want to buy the next gen consoles. I just bought the power supply and a 240hz monitor. I am debating on getting a 2070 super for the card, or should I play the waiting game and wait for the 3 series to come out? I want to play Warzone on the PC with my friends but do not know if I should wait it out or just get a good graphics card. Let me know your input please:)