Its PR talk there will definently be another Halo game with the MasterChief don't forget Bungie themselves said 'We have not seen the last of the Chief' and also hints towards a Halo 4.

SuperSaiyan4 of course there will be more Halo/Master Chief - but the article is asking whether Bungie will be producing any of it? The answer is probably not!

Microsoft own the Halo franchise.
Microsoft have created a Halo development.
Frank O'Conner (formerly content manager for Halo) is in charge
Ryan Payton who worked on MGS4 has also joined.

Whilst Bungie will continue Halo 3 support via its website, future Halo content is an entirely Microsoft Game Studios Production.

You're probably right on that one as I just remembered that Bizarre Creations has finished relations with Microsoft and the Project Gotham Racing franchise which is Microsoft's IP and someone else will be making it.

However with Halo I guess Ensemble Studios did Halo Wars and I guess someone else could make the next Halo.

It will be interesting to see in what happens I just hope if there is another Halo game its not built on the Halo 2 engine and takes only 2yrs to make...