I think loosening controls over internal transport and investing in it is a good idea, increased inter-union/inter-WPO tourism might curtail people's desire for foreign travel and strengthen our unity, but again we are in a fiscal crisis and i think we'd be better off focusing our resources on the current objectives of the Five-Year Plan, however the idea has merit.Okay, my basic plan is a four point plan.
1. Eliminate any and all attempts to russify other cultures, it's a fools gambit to try and erase traditions people have held onto for thousands of years just to be replaced with Russian ones unless they are completely reactionary. (E.g. Patriarchal ways against women, Ableist attitudes, Homophobic stuff, etc.)
2. Revive Esperanto, I know it'll seem strange but keep in mind that Esperanto was incredibly popular in the early union and I think with a few tweaks it'll help us connect people across the union without seeming like Russian supremacists. The way to revive Esperanto is to keep Russian as our linga Franca for the next 15 years while we teach Esperanto to the next generation and our bureaucrats.
3. Start cultural exchanges with our Pioneer program and our army. For the younger pioneers, they'll do traditional summer camp things but with people kids of different cultures. (Imagine, Armenian Pioneers going on beach trips with Ukrainian Pioneers in the black sea or Buryatian & Georgian Pioneers going on hikes together.) The older pioneers would help our armed forces who are returning from Afghanistan and do community work / improvements in the various SSRs. (Basically, if your an older teenager from Moscow, you would go to Armenia for the summer to do community gardening and bonding with the locals while a Platoon from the same area would bond with the locals as well and help repair the roads and do other heavy tasks.)
4. Improvements to the trains and other public transport so people across the union can easily and freely move around the Union.
With this 4 point plan, I imagine that a proud Soviet citizen of 2010 will be able to take their family from the Tajik SSR being able to take their family on a Beach Vacation to a resort on the Black Sea by train, and speak fluent Esperanto to everyone around them, Tajik among their family, and maybe their Son/Daughter speaking a phrase or two in Ukrainian to the waiter they picked up while at Summer camp in Odessa.
As for the reintroduction of Esperanto, i doubt it will ever reach the status of a true auxillary language in our nation, but it can't hurt. We should bring back Esperanto education as you've suggested and promote linguistic internationalism and exchange among our youth. Taking a more internationalist view in our political education will do us wonders in the long term as well.