The court has admitted a petition- means that pima facie the petition complies with the basic requirements and also there is some matter to be adjudicated and finalised.
Now there will be various stages like giving affidavits, counter affidavits, objections, documentary and other evidences, arguments, citations and quotation and references of previous cases etc.
Then (after years) after a verdict is out, the side which finds it favourable to them will rejoice and hail the verdict. Those who find it unfavourable will be protesting, taking marches, pressurising political parties, the legislatures and parliament etc. The political parties and politicians also will take stand based on their bulk vote and vote bank benefits.
What we see nowadays is those who go vocal always do so. When some verdict is in their favour they hail the independence of courts; but when the verdict is not in their favour they cry that courts are under influence, judiciary is not impartial etc.
Depending on the vote bank pressure and international pressure and reality situations even the government may make some new legislation. nullifying the court verdicts.
This kind of happenings we have seen a lot and still seeing. We can be ready for more, that is all.