if i had any doubts about aegon, they're gone now. he was ready to die a king, standing before hundreds of soldiers with nothing but his honor. his speech was so powerful that it awakened his dragon from a coma. he is, and always will be, the true king.
She will help him create his battleworld and probably she will be the main reason of his defaut in secret wars as she will turn on him taking the power she gave him to create this world he wanted, strange might be there also as doom's right hand
SPOILERS
This is not wanda , wanda will be working with doom thinking she is fullfiling her prophecy of ruling the multiverse but end up helping doom (we already seen how powerful she is in wandavision) and she will be his witch while these witches will be like her helpers