Can the wa particle replace de, ni, wo, or he?

Take the following sentence: Watashi ga Sakura ni Booru wo Koen de Nageru

Can I do this instead:

Booru wa Watashi ga Sakura ni Koen de Nageru

Sakura wa Watashi ga Booru wo Koen de Nageru

Koen wa Watashi ga Sakura ni Booru wo Nageru

Watashi wa Sakura ni Booru wo Koen de Nageru

If I can, then what impact does it have on the sentence? My current idea is that ga is more emphasis than wa, but wa is more emphasis than ni, de, wo.

Also, for the particles he and ni:

Koen ni iku

Koen he iku

Koen wa iku

Can I do this? I feel like this is wrong, since ni and he aren't easily told apart in this context, so wa may be too vague. But if it is okay, then what does it mean?

Thank you!

Can the wa particle replace de, ni, wo, or he?

Take the following sentence:

Watashi ga Sakura ni Booru wo Koen de Nageru

Can I do this instead:

Booru wa Watashi ga Sakura ni Koen de Nageru

Sakura wa Watashi ga Booru wo Koen de Nageru

Koen wa Watashi ga Sakura ni Booru wo Nageru

Watashi wa Sakura ni Booru wo Koen de Nageru

If I can, then what impact does it have on the sentence? My current idea is that ga is more emphasis than wa, but wa is more emphasis than ni, de, wo.

Also, for the particles he and ni:

Koen ni iku

Koen he iku

Koen wa iku

Can I do this? I feel like this is wrong, since ni and he aren't easily told apart in this context, so wa may be too vague. But if it is okay, then what does it mean?