It's already been diluted with filler races, again this is just to line the sponsors' pockets and detracts from the spectacle; Remember how compact and nice the 3 day festival used to be?
Im not in favour. If they go to Saturday then the day just gets lost amongst all the other sport, which would be a huge shame. Not such a problem if you are on track but for the armchair fan I like to have Cheltenham on from the time I get up until the last race is over. If it was 5 days this year the Saturday would clash with 3 matches in the 6 Nations Rugby, and Im sure that would change the travel plans of a lot of Irish