Man, didn't see when you put this up.  Interesting article.  So, let's see how it checks out with the leak.

PSVR2 in 2020, reveal with ps5 - This one is a wait and see, but I think most likely Sony will show all at this year's PSX or E3 2020.

resolution boost probably 2560x1440 - This would put the PSVR2's resolution at ~1.8x that of the PSVR1, so "roughly double."

120hz - Considering Sony was aiming for 60Hz, with the option of interpolated 120Hz, with the PSVR1, I think this is obviously the next goal is native 120hz.

220 field of view - Not sure what happened here.  Could be as simple as a typo, where he meant to type 120, as well. Or misheard the info. Still, if those in doubt wish to chalk it up as a "wrong," then I suppose that's fair.

eye tracking - All but confirmed by the article.

wireless - All but confirmed by the article.  It seems that they may come out with either just a wireless or two different versions, one wired and one wireless.  My guess is that Sony isn't 100% sure just yet on how they will approach that.

battery life 4-5 hours - Have to wait and see on this one.

headphones integrated - Seems likely, since the updated PSVR1 also had them integrated.

less motion sickenss - I'm sure this is always the goal.  And I'm sure they will hit it with a higher resolution and refresh rate.

no breaker box - I'm sure this will happen, though not addressed in the article.

price around 250$ - Another wait and see.  Like I sated before, I take around to mean a range of $250-$300.  I'm sure Sony will have the PSVR1's price down to $199 by the time the PS5 launches, so I don't think it's hard to believe an updated version, mainly just an update in resolution and wireless technology, would be out for $100 more.