We need to replace an ACEX 1K FPGA model EP1K100. The suggested replacement for ACEX 1K is the MAX V; however, the MAX V only has 2210 LEs which isn't enough (EP1K100 has 4992 LEs). The MAX 10 is a better match. Is this an appropriate choice?

When you mention software, do you mean using NIOS(c code) or just verilog or vhdl code?

Yes, you are right, Max 10 had more LE compare to Max V. You may also consider other device depending on your requirement. You can check over here.

https://www.intel.com/content/www/us/en/products/programmable/fpga.html

any update?

We're using Quartus II 9.0sp2 Web Edition. There is very little custom code and most of the design is using the MegaWizard Plug-Ins. I reviewed the other FPGAs and the MAX 10 and Cyclone 10 seem like the best fit. The Cyclone 10 has a lot more LEs and more capability that we currently require, but might be a good fit for our next generation product which we will be developing in the next couple of years. Right now our requirement is a direct replacement for the design based on the ACEX 1K.