Yes. In fact, that is usually the goal.
An alternative mortgage is often a temporary solution used while you fix whatever is keeping you from qualifying with a traditional lender today.
Moving back to a bank is not automatic. You still need to meet the bank's lending guidelines when it is time to refinance.
The important part is knowing what has to change before you enter the alternative mortgage.
The alternative mortgage should buy you enough time to repair credit, establish income, reduce debt or address whatever prevented traditional approval in the first place.
When you refinance later, the lender will assess you under the lending rules in place at that time.
Clean repayment history and improved credit can materially change which lenders are available.
You may need stronger documented income, additional employment history or another tax year.
Lower debt balances can improve debt-service ratios and overall qualification.
The property still needs to meet the lender's requirements and the loan-to-value must work.
A good alternative mortgage strategy identifies exactly why the bank declined you, what needs to improve and how long that improvement should reasonably take.
Without that plan, you risk reaching maturity and discovering that you still do not qualify for better financing.
The bank will look at your situation when you apply again. The reason the alternative mortgage existed matters less than whether you now fit the lender's guidelines.
There is no universal waiting period. The timeline comes from the problem you are trying to correct.
Sometimes enough when the problem is temporary and the rest of the file is already strong.
Often enough time to establish cleaner credit, stronger income history or lower debt balances.
Some credit, income or financial restructuring situations simply require more time.
If the alternative mortgage is structured properly, it should solve today's problem while creating a realistic path toward lower-cost financing later.
Tell me what's going on and I'll help you understand what may work now and what would need to happen to move back to traditional financing later.