[bluGill]

First figure out what they want, and then figure out what is best for the project/company, finally figure out what how to turn it into the future you want.

What they want is important. This could be a way to recognize that you are great without giving you architecture power, they want you to continue to do what you are doing no more (this is unlikely but be aware of it). They may want you to write a little less code and turn some of the "lesser" developers into a 10x developer. They may want to give you permission and power to re-architect the system so it will work for the future. They may want you to spend all your time estimating effort so they can decide which interesting project is worth doing. This may be the title they give to the boss of small teams and you no longer do technical work.

What is best for the company/project is sometimes different. Sometimes that means what you need to do to make a success is different from what they think. If so this is tricky ground that will either get you fired for not doing you job, or a great promotion for saving the company. More likely you have options in your position and so you need to figure out which option is worth spending your time on and which are less useful for your company now. There are interesting tools that won't solve your biggest problems even though they would make some other lesser problems better, choose wisely what to spend your time on.

Last where do you want to be in the future. Within the above you have choices. If you are interested in something not the most important thing to work on you need to decide how much to focus on each. (different situations have different answers, sometimes you have to focus on the important things, others you can only give it a little attention and that is good enough) sometimes you will refuse the promotion. Sometimes you will decide what is best for the company is best for you. Sometimes you take the promotion but need to focus on your personal life to ensure the job doesn't kill it, other times they are compatible. Sometimes you realize you are in the wrong job.