One PowerPoint Roadmap slide

Hello
I need a simple yet concise PowerPoint slide to show a 'roadmap' communications plan. I need to show a 'multi-campaign' or multi-project roadmap highlighting two key customer segments. The underlying objective is to show to an senior audience a high level one page view of all the different communications going to different customer segments and when in order to show where there are 'overlaps'. More than anything we do not wish to bombard our customers with communications all at once.

I want to also include a box below for commentary and attach a few ideas of similar roadmaps I like. It is important that we have columns for months February - June 23 and the rows are the projects/campaigns. If we can also somehow include space for a brief definition of the projects/campaigns as I have in my excel that would be great. Please also use the same colour palette as my excel Gantt chart.

I would need the first draft PowerPoint slide by Saturday at 7pm UK time.

Thank you,
Madiha

I can also provide the details for the communications plan via excel gantt chart style summary.