It's 6 months away, who would know at this point? Unless Richie officially quits anything can happen.

also someone asked him if he's gonna be in Lisbon and this is his answer

Phil X ‏@TheRealPhilX

@SarafdezCa #11 but will prob answer many ?'s. it looks like I'll be here for the rest of the leg (til Hyde Park) ...but you never know.

So does this mean that I can finally sell my tickets for Cologne? Help me, don't know what to do!

Yeah, I like it better Ha! Cause nothing is definitive.. It seems a 100% sincere answer

Keep them and enjoy. Although hes not Richie,Phil X is doing a great job and Jon is upping his game too. Ive seen Jovi 26 times now with Richie and once without and last nights show was well above expectations,Jon looked genuinely happy to be there and Phil X doesnt deserve the flak he gets from some people.
He looks comfortable on stage and is a hell of a lot more enternaining to watch than Hugh and Bobby who you may have watched before.

Suggesting that at Hyde Park he won't be there?

Not at all, he's saying that he's staying until the end of the leg, the leg ends on Hyde Park, which means that he will be there and it should be his last gig with the band.

I've already seen them in Munich last month. It was a good show but without Richie I can't enjoy it to 100%. There are too many things that I miss, for example his vocals. It's a strange feeling if you look at the left side of stage and there is no Richie.

I take it as suggesting including Hyde Park, it's in brackets to highlight that's the end of this leg.

Until renegotiated for the next leg. :p