There is little know about this, but here's what IS known.
Mortal Kombat Kollection is likely a compilation of classic MK arcade games set for release around October 1st, 2008. At this time, the only platform known for which it will be released is the PlayStation 2.
Midway has launched a site called Midway Arcade, where you can play classic Midway arcade games for free online. The MK arcade games, however are absent, which contributes to the possibility of Mortal Kombat Kollection being an MK arcade compilation.
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::Hmm...I think that this site would have small games like mk1 and mk2.. Or might be they have made tiny games like we have on our arcade but they would only relate to the MK...Okay! I will check the website ::