Layout redo - what do you think? 1 pg or 2?

Many years ago I won grand prize in a layout contest at Great American Scrapbook Convention.  I had a square photo of me each decade of my life, with a box underneath each photo telling where I lived, what I was doing, etc.  I did first year to age 40, so five 1.5x1.5 inch photos lined up across on the page.  It was on patterned vellum with brush lettering which at the time was cutting edge. The style is OK but I could make it so much better now 

So now I am 60.  10 years ago I had started a second page with K&Co paper because I had no second sheet of the vellum, with age 50 and just added on the picture of me at 60.  .

So here is my query:  I am going to redo it but I don't know if I should redesign it so I get first year to age 60 all on one page, or should I basically replicate what I did before and just carry it over to the 2nd page but have them match and coordinate?

Then, should I leave space for 70, 80, 90, which is essentially how it is laid out now.  If I don't live to 70 it will always be incomplete.  I will need to find paper that inspires me in this redo so I'm not rushing into changing it.  I have lots of photos of the original layout that won already scrapped so I don't feel at all compelled to keep it as is because I am 20 plus years older now and want that reflected in the layout.