Beautiful country!
I don't know whether it's a coincidence of timing, but recent developments are happening like a well-concerted quartet between Islamabad-Tehran-Moscow-Beijing! Look, we got sanctions imposed on Iran now lifted, China building pipe-line from Iran to Pakistan, Russian building pipe-line in Pakistan, more RU/CN nuclear power for Iran, and PCEC, the AIIB, and many others contributing to an Eurasian integration. Things are already moving in a clear direction, which will benefits all people in the loop.
My opinion would be that with Moscow-Beijing as an stabilizing axis, the Eurasian Economic Belt has a vision to build an economic bloc supported by a full portfolio of physical infrastructures, with low-trade-barrier between the members. In the center core of it would be central Asia (current SCO members), Pakistan, Afghanistan, Iran, Belarus, CEE (the 10 Central & Eastern European countries) and the peninsular ASEAN countries (Thailand, Laos, Burma, Cambodia, Cambodia, Malaysia).
In comparison, the Maritime Silk Route concept would be a reinforcement of existing trading routes. Infrastructures will include bigger/better sea ports, and every other ones needed for maritime economies. The key countries/regions will include ASEAN, Sri Lanka, Bangladesh, Pakistan, Iran, GCC states, African countries and Southern European countries like Greece, etc.
Despite on the Far East, the advanced industrialized countries of Japan, South Korea and Taiwan are already deeply integrated with rest of Asia forming the biggest and fastest growing industrial region in the world ("Factory Asia"), and will definitely continue to benefit from a booming, well-connected and more integrated Eurasian economy. Similarly this applies to Germany-led western Europe.
For Iran, I am sure that their people knows what is best for them. It's already a middle-income country (GDP/capita over $5,000) with high UN-HDI, has good industrial base and huge natural resources. Iran's growth potential is enormous, offering a lot of opportunities for both Iranians and other people.
About China's developmental model? Hard to describe, basically same as other East Asian countries I suppose. Average Chinese mentality is work hard, roll up the sleeves and get things done. Study hard, and make your kids study even harder. Balance income and spending, spend wisely (husbands and fathers only, that's sad), debt is very bad. Focus on doing what one is good at, and trade with others. Keep saving, re-invest what one earns, investing for the one's own future and for the next generations' betterment. I think that pretty much summarize China's model i.e. intensive industrialization, privatization for entrepreneurship, high savings rate, low consumption rate, education-centric, high investment rate, keep building infrastructure.