2017 Opportunity? If so, then when?

We have discovered that Parks Canada replaced the single flagpole which was too short and very rusted with two new flagpoles. Two trees whose canopies interfered with the previous flagpole have been removed.  This year, the native plants of the Road Garden will explode with new growth thanks to full sun from the east, south and most of the west.

Now the question:

Do we leave the Road Garden with its current dimensions? Or do we expand it by planting native plants in all of the green space except for the area to the right of the snowbank which is part of the street's walking path? I must admit that the current back edge of the native plants now looks quite arbitrary.

Here's an alternative photo of the current area.

Gardening at this level always turns into project administration, bounded by time, money and resources. 

• Do we have the time? Perhaps. Perhaps not.
• The money? Uh, not exactly. Our budget is set for 2017 and the number of native plants to cover the green area would consume the entire 2017 budget. 
• Resources? Volunteers? Perhaps. But we recall the substantial efforts in 2015 with the Parking Lot Garden and original Road Garden. Our volunteers were worn out by the time we were done. This is going to take further thought.

FYI, here's what the Road Garden looked like in prior years.

2014 - the old flagpole between tree and sign

2015 - starting to plant. Plant plugs next to flagpole.

2016 - July 1. Canada flag to left of tree.