No, a heloc is based on current appraisal not future. There is a renovation loan that uses the ARV to lend in "Advance". meaning if you need cash to renovate or build its uses the future value ARV and lend off that usually 80% LTV/LTC.
If you are talking about an investment property its even harder in terms of a Heloc. Even once the homes is renovated a Heloc on an invesment property is tough to find. The lenders that do offer them want a 60-65% LTV Max and offer a higher rate versus a cash out refinance.