I think that as long as the IRL website doesn't make an official statement, it's just about good rumours; btw the same italiaracing.net
http://italiaracing.net/notizia.asp?id=17566&cat=3
report of Patrick Long entering the series with Luczo/Penske outfit, it's not specified whethedr it would be for the whole season.
It's quite curisous that this little italian website report things that nobody know in the States...